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Makers' surnames include: Coates, Cobb, Cobham, Cochereau, Cock, Cockbill, Cockett, Cockey, Coggs, Coignand, Coke, Colard, Cole, Coleman, Colin, Collet, Colley, Colliber, Collier, Collyer, Collingridge, Collins, Collison, Collomby, Colomby, Columbell, Colston, Comans, Combes, Combs, Comens, Company, Compigne, Compton, Cone, Conor, Constable, Constantin, Constantine, Conyers, Cook, Cooke, Cooks, Coole, Cooley, Cooper, Cooper & Hedge, Coote, Cope, Copeland, Copp, Corbet, Corder, Cordwell, Corner, Cornill, Cornu, Coste, Coster, Cotsworth, Cotton, Cottenbelt, Couch, Coulon, Coulon & Bry, Coupar, Courstau, Court, Courtauld, Courtial, Cover, Cowan, Cowburne (Coburn?), Cowell, Cowes, Cowper, Cox, Coxeter.

Makers' surnames include: E.D., Dakers (Dacres?), Dale, Dalgliesh, Dalton, Daniel, Daniell, Daniels, Dann, Darling, Davenport, Davidson, Davies, Davis, Dawson, Dawes, Day, Dean, Deane, Dear, Deard, Deards, Dearmer, Debaufre, Debaufres, Neville & Debaufre, De Charmes, Decharmes, De Choudens, Decosta, Dee, Definod, Defontaine, Desfountaynes, Defoxton, Dehecq, De la Balle, Delaballe, Delafons, Delahoyde, Delander, Delapont, Delassall, Dell, Dellamy, Dellcourt, Delorme, Delve, Demarsay, Denelope, Denn, Dennis, Dent, Dentan, Denton, Derham, Dermer, Deroches, Desagulier, Desalt, Descombes, Deseser, Dessesor, Desmarias, Desrings, De St. Leu, Deval, Devemmel, Devis, de Vreese, Dewe, Dewilde, Dexter, Deckster.

Makers' surnames include: Dickie, Dickins, Dickson, Die, Dighton, Dingle, Dingley, Dinmore, Ditton, Dobney, Dobson, Dolland, Dolly, Dolley & Oldham, Dolphin, Donisthorpe, Dorrell, Douglas, Douglass, Dove, Dovers, Down, Downes, Downing, Dows, Dowse, Dowson, Drake, Draper, Draycott, Drew, Drossade, Drury, Dryden, Dryer, Drysdale, Dubedat, Duboys, Duchampe, Duchesne, Duck, Dudds, Dufour, Duhamel, Du Hamel, Dunant, Duncan, Dunlop, Dunster, Dupin, Dupont, Dupree, Dupuy, Duquesne, Durade, Duran, Dutan, Dutens, Dutertre, Dutton, Dwethouse (Dwerrihouse), Dyde, Dyke.

Makers' surnames include: Fladgate, Flamsteed, Flavill, Fleece, Fleetwood, Fleming, Fletcher, Fleurieau, Flint, Flower, Flowerdale, Fly, Foden, Fogg, Foisseau, Folgham, Folkes, Fontaine, Fontaine & Torin, Foot / Poole?, Ford, Foardham (Fordham), Ferrister, Forster, Forsyth, Fort, Forte, Forter, Forth, Foster, Foubert, Fowler, Fowll, Frances, Francis, Franses, Franklin, Franksman, Fraser, Fravis, Free, Freedman, Fredman, Freeman, French, Fresh, Freshfield, Fricke, Frodsham, From, Fromanteel, Fromanteel & Clarke, Frost, Froust, Frowde, Fry, Fryer, Fuller, Furnesse, Futer.

Makers' surnames include: Joel, Johns, Johnson, Johnstone, Jolland, Jolly, Joly, Jon, Jones, Jordan, Jorden & Gordon, Joseph, Josephson, Joubert, Jourdain, Jourden, Jovat, Joyce, Jullion, Julliott.

Makers' surnames include: Moilliet, Molliere, Molloy, Molly, Molyneux, Monckton, Moncrief, Monkhouse, Monroe, Moor, Moore, Moran, Morant, Mordecai, Morecock, Morel, Morell, Morey, Morgan, Morin, Morland, Morley, Morris, Morrison, Morse, Morton, Moser, Moses, Moskeal, Moss, Moze, Motley, Mott, Mould, Mountford, Mousard, Mountfort, Mowden, Mowry, Mowtlow, Moyle, Muckleston, Mucklestone, Muddle, Mudel, Mudge, Mudge & Dutton, Muir, Mueller, Mundy, Munday, Munelly, Munroe [Monroe], Munshall, Muret, Murgatroyd, Murray, Mushin, Murphey, Murrel.

Makers' surnames include: O[…], Oakley, Odell [?], Ogbourne, Ogden, Oldfield, Oliver, Olliver, Olivermaes, O'Neal, Orpion, Orrery, Orson, Orton, Osborne, Osland, Osmond, Otteridge, Otting, Ourry, Overhall, Overs, Overturn, Overzee, Ovett, Owen, Owens, Oyens.

Makers' surnames include: Peachy, Peachey, Peacock, Pearson, Peirson, Pierson, Peckham, Pedler, Pegg, Peke, Pellettier, Pellour, Penavayre, Penkethman, Penlease, Penton, Penn, Pennington, Penny, Penticross [Pentecost ?], Penton, Pepfenhauser, Pepin, Pepper [?], Pepys, Percival, Perier, Perigal, Perrigal, Perkins, Perries, Perrin, Perins, Perrins, Perry, Perry & Price, Peters, Peterson, Petit, Petty, Pew, Peyton.

Makers' surnames include: A. R., Rabe, Rabby, Radford, Ragg, Paynisford, Rainsford, Raynsford, Ram, Ramsden, Ran, Ranals, Ranales, Rand, Randell, Ranson, Rant, Rape, Rapson, Rasanwarne [Rawsthorne ?], Rasberry, Raules, Ravenshaw, Rawlings, Rawlinson, Raworth, Rey, Ray, Rayment, Raymond, Rayne, Rayner, Read, Reader, Reaplin, Recordon, Reddish, Redknap, Redol, Reeve, Reeves, Regard, Regiem, Reigem, Reilly, Reipolt, Reith, Renou, Renow, Rewalling, Reyendorff, Reym, Reynolds, Rhodes.

Makers' surnames include: S[…], Sadleir, Sadler, Saft, Sainsbury, Sale, Salisbury, Salmon, Sambrook, Sampson, Samson, Sanders, Sanderson, Saunderson, Saunders, Satchell, Savage, Savell, Savery, Savidge, Saville, Savile, Savil, Sawyer, Sayer, Scafe, Scales, Scatliff, Scarfe, Schaeffer, Scheiner, Scheks, Schegs, Schmizt, Scholefield, Schofield, Scholes, Schultz, Science, Scott, Scrivener, Seabrook, Seagrave, Seale, Seawell, Sebire, Seddon, Sedgwick, Seeley, Seguier, Sellers, Seller, Sellon, Sellwood, Senesse, Senex, Serjeant, Sergent, Sarjant, Sergeant, Sargent, Serner, Serre, Servas, Servaniere, Sewell, Sewel, Seydell, Seymore, Seamore, Seymour, Seyton.

Makers' surnames include: A. T., Talman, Tamson, Tomson [?], Tanner, Tanqueray, Tapscot, Farbock [Tarbock], Tarles, Tarleton, Tarr, Tarts, Tash, Taverner, Tawny, Tawney, Tayley, Taylor, Tayler, Telfer, Tempesaar, Tennett, Tennant [?], Terold, Terrier, Terrot & Thuillier, Terroux, Terry, Tesells [?], Thache, Theobold, Thierry, Thiolet, Thomas, Thomasson, Thomegay, Thompson, Thomson, Thorn, Thorne, Thornborough, Thornburgh, Thornton, Threlkeld, Thurayte, Thuret, Thwing, Tickell, Tiger [?], Tikschaw, Tiller, Tillier, Tills, Tilly, Timms, Timpson, Titzchkau.

This series contains cutouts and photocopies of twentieth-and early twenty-first-century catalogue entries and advertisements describing seventeenth- and eighteenth-century longcase clocks, annotated by Jeremy Evans. The files also include photographs and some related correspondence and reports.

Makers' surnames include: Abbott, Abdell, Abraham, Ackerley, Adamson, Ainsley, Alder, Aldworth, Alexander, Alfield, Allam, Allaway, Allsop / Alsop / Alsope, Amyot, Anderton, Andrews, Appleford, Appley, Archambo, Archer, Argos, Arnold, Ashbrook, Ashton, Aslat, Asselin, Aubert, Austin, Avenell, Aylward, Aynsworth, Ayres.

Makers' surnames include: Bailey, Baker, Barber, Barnes, Barnet, Barnett, Barraud, Barrett, Barron, Barrow, Baseley, Bayford, Bayley, Beake, Beale, Beavis, Bedford, Behoe, Bennet, Bennett, Berry, Bertram, Bewley, Bicknill, Bilbie, Billings, Billop, Bird, Birt, Blackborough, Blackbourn, Blake, Blanchard, Blundell, Booth, Boreham, Bouquet, Bowyer, Boyce, Bradford, Bradley, Brafield, Brass, Bridge, Bridgman, Brooking, Brooks, Brown, Browne, Bryan, Buckingham, Bull, Bunce, Burges, Burgis, Burputt.

Makers' surnames include: Daniel, Davis, Davison, Day, Debenham, Debnam, De Charmes, Delaunce, Delance, Dene, Dent, Denton, Derve, Dewe, Dickerson, Dingley, Dobson, Dorling, Dorrell, Dorrill, Draper, Drew, Drury, Duchesne / Du Chesne, Duhamel, Dunlop, Dupont, Dutton, Dwerihouse / Dwerryhouse.

Makers' surnames include: Farwell, Faulkener, Fearnley, Fenn, Fennell, Fenton, Fenwick, Ferguson, Ferron, Fielder, Finch, Fish, Fladgate, Fleureau, Flook, Follit, Fontaine, Ford, Forde, Foster, Fowll, Fox, Freeman, French, Freshfield.

Makers' surnames include: Gardner, Garfoot, Garon, Gascoigne, Gatton, Gavell, Gavelle, Gazuet, Gibbs, Gill, Giroust, Glazior, Glover, Goddard, Goode, Goodman, Gould, Grant, Gratte, Gravell & Tolkein, Gray, Gray & Vulliamy, Green, Gregg, Gregory, Gribelin, Griffith, Grimes, Grimwade.

Makers' surnames include: Hackett, Halifax, Hall, Hally, Hampson, Hanson, Harbart, Harbert, Herbert, Hardinge, Harmer, Harper, Harris, Harrison, Harvey, Harvie, Hasius, Hatfield, Hawkins, Hayler, Hayley, Hebert, Henderson, Herbert, Hewitt, Hicks, Higgs, Hill, Hindley, Hindmore, Hocker, Hodges, Holland, Holloway, Holmes, Hopkins, Houlgrave, Howard, Howse, Hubbard, Hubert, Hughes, Hulbert, Hunt, Hunter, Huntsman, Hurt, Hutchin, Hutchinson, Hynam.

Makers' surnames include: Lakin, Lambe, Lambert, Langford, Latham, Lawley, Leadbetter, Le Bass, Le Count / Lecount, Ledgard, Lee, Leigh, Lester, Lestourgeon, Lindsay, Lock, London, Longland, Lovelace, Lowndes, Lowry, Lugg, Lumpkin, Lyons, Lys.

Makers' surnames include: Nash, Neale, Newbrough, Newborough, Newby, Newton, Nicholls, Nickals, Norcott, Norris, Northcote, Northey, Norton, Nourse, Ogden, Olden, Ollive, Orton, Osborne, Overzee.

Makers' surnames include: Sadler, Saer, Sagar, Sampson, Savage, Scafe, Schofield, Scott, Seddon, Sellers, Sewell, Seymour, Shaw, Shelton, Shepard, Simcock, Simcox, Simmons, Skeggs, Skilmore, Smith, Smithyes, Smyth, Snelling, Snow, Soldano, Sparkes, Speakman, Spencer & Perkins, Spinney, Spurgin, Stanton, Stearn, Stedman, Steele, Steevens, Stevens, Stevenson, Still, Stillwell, Stock, Stockar, Stock, Stocke, Stokes, Stone, Storr, Stretch, Stringer, Stubb, Stubbs, Style.

Makers' surnames include: Tantum, Taylor, Thatcher, Thompson, Thorne, Thornton, Threlkeld, Thwaites, Tipling, Tolley, Tomlinson, Tortore, Toulmin, Tracy, Trail, Traunter, Trattle, Tregent, Trigg, Trigge, Trippett, Trout, Trubshaw, Tucker, Turnbull, Twigg, Tyler.

Makers' surnames include: Uffington, Urquhart, Utting, Vale, Valentine, Vans, Vauloux, Vernon, Vick, Viens, Viet, Vincent, Vines, Vise, Vulliamy, Vulliamy & Gray.

Makers' surnames include: Wade, Wadleton, Wady, Waldron, Walker, Walley, Ward, Warden, Washbourn, Wasson, Watson, Watts, Wattson, Webb, Weller, Wells, Westoby, Wheeler, Whichcote, White, Whitebread, Whittaker, Whittingham, Wieland, Wightman, Wild, Wilkes, Wilkins, Williams, Williamson, Willoughby, Wilmot, Wilson, Wimble, Winckles, Wise, Wither, Withers, Woolley, Wood, Woodward, Woodworde, Wrench, Wreghit, Wright, Wyche, Wyld.

Makers' surnames include: Yeates, Yoakley, Young, Younge.

Makers' surnames include: Naylor, Nethercott, Neve, Newman, Newton, Nicolason, Nicholson, Norcott, Norris, Norton, Ogden, Oosterwyck.

Makers' surnames include: Pain, Panchaud, Papavoine, Pare, Peckover, Pepys, Perigal, Perinot, Perry, Penny, Philp, Pinchbeck, Pingo, Pistor, Pleydell, Pluet, Poy, Prevost, Prime, Prior, Procter, Pryor, Puller, Purden, Pyke.

Includes correspondence, photocopies of eighteenth- and nineteenth-century newspaper extracts, and cutouts of catalogue listings.

Includes correspondence, photocopies of eighteenth-century newspaper extracts, clock descriptions, brochures, journal articles, cutouts of catalogue listings, photographs and notes.

Includes correspondence, photocopies of seventeenth- and eighteenth-century newspaper extracts, brochures, journal and newspaper articles, cutouts of catalogue listings, photographs and notes.

Includes correspondence, copies of eighteenth-century newspapers, newspaper articles, sales brochures, cutouts and photocopies of catalogue listings, and photographs.

This collection comprises business records of Strike One Limited, specialist dealers in antique clocks and other horological items, founded by Milo Mighell in 1968. They include stock/sales books, which list every item that went through the business; clock photograph albums, which contain an image of every clock, together with a typed description (a ‘descriptive ticket’); clock files arranged by clock type, with individual clock descriptions; as well as a handful of sales and exhibition catalogues and other publications with Milo Mighell’s contributions. The archive also contains an interview with Milo Mighell conducted by James Nye in 2024; although not created as part of Strike One’s business activities, it sheds valuable light at its and its founder’s history.

The unique stock numbers, which were assigned to each item at the time of purchase and appear across the collection for cross-referencing purposes, are made up of two parts separated by a full stop/point. Before the full point is the month and two digits for the year. After the full point there is an incremental number assigned to each new purchase. For example, stock number 868.123 indicates August 1968, purchase 123.

A fine and unusually small, satinwood, balloon bracket clock in exceptional condition.

An exceptionally fine, English striking wall clock with silvered dial and mahogany case in the manner of Thomas Hope.

A collection of four silver pair- and triple-cased verge watches in mint condition.

A fine mahogany bracket clock with verge escapement.

A good striking dial clock by these well-known makers, the movement signed, numbered and dated.

A very fine and small hooded wall clock in a mahogany case and with arched brass dial, weight-driven verge movement and hour strike.

A very fine, cathedral, three-train skeleton clock, quarter striking on eight bells and hour striking on a gong.

A small rosewood bracket clock

A fine carriage clock in gilt corniche case repeating on a bell.

Mahogany longcase.

A very fine and rare, quarter striking skeleton clock by this well-known maker.

Striking clock.

A good small mahogany stick barometer with plain round top by this well-known maker.

108 pages. Topics include: quarter chime movement, recoil escapement, watch and clock trains, weights and sizes of bells of St Philip's and St Jacob's church in Bristol, pendulum bobs, metals, turret clocks done by H. Draisey, compensated balance, dead-beat escapement, pinor jewel pallets, Americal pallets, hour and quarter chime snails, rack work, turret clock dial work, the Universe, the Solar System, the Year, turret clocks locking plate. warning and stop work, electric clocks balance type, the gravity escapement, enameled iron dials, hard soldering, electric gilding, batteries, dial clock train, recipe for French polish, the Wells Clock, the Big Ben, etc. With diagrams.

This collection comprises horological subject files of correspondence, publications, notes and photographs, compiled by Charles Allix.

The subject files contain correspondence, publications, notes and photographs

Malcolm Gardner (1896–1960) was an antiquarian horologist, horological consultant and bookseller, and Charles Allix's business partner. Robert Gardner (1851–1932), his father, was a manufacturer of marine chronometers. Includes: Robert's and Malcolm's original business correspondence (handwritten and typewritten); published "horological who's who" biographical note on Malcolm; published obituaries of Robert and Malcolm; business certificates; Charles Allix (Malcolm Gardner) Horological Book Catalogue flyers; and Charles Allix's handwritten copy letter to "Sandra" on the death of her father Richard J. Coates.

J. E. Haswell (1890–1967) was the director of R. Haswell and Sons (tool and material business), the author of Haswell's Horology textbook, and a member of the Worshipful Company of Clockmakers. File includes C. Allix's correspondence with Haswell, mainly concerning his book; Allix's correspondence with Mrs Edna Haswell, mainly regarding the estate of her late husband and the sale of items belonging to him; Haswell's obituary by C. Allix published in The Horological Journal; and obituary press cuttings.

Charles Hobson (1907–88) was a clockmaker and a honorary freeman of the Clockmakers' Company. File includes C. Alix's correspondence with Hobson; correspondence with Daniel Parkes regarding Hobson's Choice, a book of sketches of English bracket clock repeating work by Hobson, Allix and Harvey (1982); published reviews of Hobson's Choice; notes; copy of certificate of registration of Hobson Bros; photocopies of Hobson's letter to Col. Quill regarding his will; and an obituary of Hobson, published in Antiquarian Horology (Spring 1988).

Includes catalogues, brochures, historical notes, photographs and related correspondence.

James Reith was apprenticed in 1698 and became the vice director of a watch manufactory in Versailles, France. File includes extracts from sales catalogues, technical descriptions, biographical information, invoices, photographs, and related correspondence.

Includes correspondence, handwritten notes and photographs of various Vulliamy clocks sold at different auctions, photocopies of sales catalogue pages, a photocopy of Thomas Reid's letter to B.L. Vulliamy of 1822, and Charles Allix's article "A mid-18th century alarm by Gray and Vulliamy" (Antiquarian Horology, Spring 1994).

This collection comprises Roger Carrington’s research papers relating to clockmaking and watchmaking in the north of England, and the role of insurance records in researching horological history.

Handwritten extracts from volumes 1–100 of policy register series MS 11936, including an alphabetical name index and individual policy details.

Handwritten extracts from volumes 1–99 of policy register series MS 11937, including an alphabetical name index and individual policy details.

Handwritten extracts from volumes 301–399 of policy register series MS 11937, including an alphabetical name index and individual policy details.

Handwritten extracts from volumes 1–98 of the fire policy register MS 7253, including an alphabetical name index and individual policy details.

This series contains a notebook and a bound typescript of John W. Castle's planned publications.

Includes letters, two photographs and a brochure titled Petite Historie d'Aigueperse.

Includes letters, a typewritten extract from La Cathedrale de Beauvais by V. Leblond, and a photographic postcard.

Includes letter, photographic service receipts, and one photograph.

Includes letters, six photographs and a drawing.

Includes clocks from Bowes Museum at Barnard Castle, Horniman Museum, Bethnal Green Museum, James Cox Musical Clock, the Bridges Clock, Helleicher's Singing Clock, the Thomas Dallam Organ, etc. 12 photographs.

Includes over 25 photographs and photographic postcards and six articles on chiming clocks, Thomas Tompion clocks, curious clocks, "Pendulum to Atom" exhibition, and a number of other individual clocks.

Includes letters, three press cuttings, and 17 photographs and photographic postcards.

One typewritten letter. Also includes a seemingly unrelated handwritten and undated (incomplete?) letter to "Mr Genge [?]".

Includes typewritten letters, eight photographs and envelope.

Includes two typewritten letters and envelope.

Includes typewritten letters, two printed photographs, and a newspaper cutting from Beschaulich Daheim (1933) with an article "Die Kunstuhe an Rathaous zu Plauen".

Includes typewritten letters, extracts from journal articles, and nine photographs and drawings. Also includes letter from Instituto e Museo di Storia della Scienza, Florence, Italy.

Includes typewritten letters, order slips, regulations, and a list of photographs and lantern slides of objects in the Museum's time measurement collection. Also includes an invitation to a private view of Huygens' pendulum clock, and a photographic postcard of the Dover Castle clock.

Includes a single typewritten letter.

Includes a typewritten letter and article "Die Ulmer Rathausuhr: Ein handwelkliches Meisterstück deutscher Renaissencekunst von Albrecht Rieber", and a photograph. Also includes a letter from the mayor of Olomuc, Czechoslovakia, regarding a booklet on the Olomuc town hall clock (the booklet is not included).

Includes letters, order forms, rules for ordering and sale of photographs, and two photographs.

Includes "The Accutron: the world's first electronic watch" (Horological Journal 1961), typescript of "The watch of to-morrow", list of the Horstmann collection of antique watches, and two photographs.

This collection comprises research papers compiled by Robert Miles in the course of his study of the history of the Synchronome company, which resulted in the publication of his book, Synchronome: Masters of Electrical Timekeeping (2011 and 2019). They include copies of primary and secondary sources from the nineteenth century onwards (including papers and articles by F. Hope-Jones), subject files, clock lists, photographs, slides and digital records.

This collection comprises research notes on clockmaking in regions of England (Surrey, Middlesex, Hampshire and the Isle of Wight) and the Black Forest, possibly assembled by E. John Tyler.

Includes typescript of an article on "The Clockmakers of Surrey, Middlesex and Hertfordshire"; handwritten and typescript lists of individual makers 1516–1830; scrap notes; handwritten notes taken from The Economic History of England by E. Lipson (1915); a catalogue leaflet for Rita Shenton's bookshop (specialist horological bookseller); two b/w photographs of a longcase clock by James Douglas Chertsey; small print of a view of Southwark Cathedral; and a tourist guide to Islington.

Contains one b/w photograph, captioned, pasted onto card. Caption does not give the names of people in the image.

Contains snapshots and portraits from Paris, Lyons and Besancon (38 b/w photographs, captioned, one loose and the rest pasted onto 7 cards); two photographic postcards; three banquet menus (two with guests' signatures); map of Paris public transport; and Lily Hudson's Foire de Paris pass. Captions do not give names of people in the photographs.

Contains four colour photographs, uncaptioned, loose, showing people boarding a coach, posing for the portrait and seated at a dinner table.

Contains one sepia photograph, uncaptioned, loose.

Also includes notes. Map not included.

Mostly handwritten. Includes notes, sketches and calculations.

Includes annotated typescript of "The Tompion Clocks at Greenwich and the Dead-beat Escapement" by Derek Howse, an article published in Antiquarian Horology (December 1970); pages from the Horological Journal (October 1962) on Tompion pallets; and Northcote's correspondence with Howse, with notes and sketches.

Also includes eight photographs, typescripts of "Further notes on some Westmoreland Clock and Watch Makers" (1962) and "Former Clock- and Watch-makers of North Lonsdale" by J.L. Hobbs; handwritten notes on clocks, handwritten draft of L. Northcote's review of Clockmaking in Oxfordshire 1400–1850 by C.F.C. Beeson (1962) with a cover letter, and a copy of Cake and Cockhorse: the magazine of the Banbury Historical Society vol. 1 no. 2 (1961/62).

Includes signed typescript of L. Northcote's review of Clockmaking in Oxfordshire 1400-1850 by C.F.C. Beeson (1962); typescript of "Electronics in Timekeeping", a lecture given to the Electrical Horology Group by J.D. Weaver at the Science Museum (6 Dec 1975); typescript of an article on "The Watchmaker's Guild of Copenhagen" (n.d.), and handwritten notes and comments on the Flamsteed / Towneley correspondence and Towneley's pallets as revised by Tompion.

This collection comprises Philip Thornton’s reports, notes, sketches and tracings which document the repairs and restorations of mainly bracket clocks, carried out by him primarily in the 1930s and 1940s, with a few later instances. Most papers record the date of restoration and the name of the client. The files vary in size and content from single pieces of scrap paper to more comprehensive bundles containing condition reports and detailed large-format drawings. Many of the papers are in very fragile condition.

Contains handwritten notes and tracings.