On Friday 20th January CAG was pleased to hear from Professor Smith about his research into medieval paper in Cambridge. It was our first full in person event since March 2020 and it was great to be joined by many of our conservator colleagues.
Professor Smith began with an overview of papermaking, noting its origins in China in the 2nd and 1st centuries BCE. Paper reached Europe in the 11th century. Early in the 13th century paper began to be made in Europe, firstly in Spain and Italy, particularly Fabriano in Italy. Watermarks acted as trade marks for paper and allowed the origin and date of paper to be traced.
The earliest English paper mill was owned by John Tate and located near Hertford. There was also and early mill in Kent, owned by Spilman. In Cambridge there was a mill established in the 1550s in Fen Ditton. The mill was established under the auspices of the Bishop of Ely and the watermark of the paper produced shows the initials of the Bishop of Ely (Thomas Goodrich Eliensis: TGE or sometimes just TE, as below) and the paper maker (Remigius Guidon: RG). Reading bottom to top, this watermark says ‘RG 4 TE’
We also heard about the process of early paper making: rags were shredded, then pounded (using power from a watermill) to break down the fibres before being mixed with water to create a pulp which was then lifted out on frames to create individual sheets of paper. Frames were used in pairs. Illustrations from Denis Diderot’s ‘Encyclopedie’ of 1767 (below) show the process.
The frames create chain lines and laid lines on the paper and allow watermarks (designs made of wire, attached to the frame) to be added. Sizing (glue) is also added and then the paper is smoothed and folded in necessary. It may then be made into quires (24 or 25 sheets) (NB not the same as a quire in a bound volume) and then bundled into reams (500 sheets).
Paper was usually made in folio size (a bit smaller than A3), and the watermark was placed in the centre of one half. Watermarks came in a wide variety of styles and were often influenced by location, time and current fashions. Some included initials (as the Cambridge paper did) of producer or a date of production. When recording a watermark is it important to note its vertical and horizontal height and position on the page. You may also wish to count chain lines and laid lines and where the watermark occurs with respect to them, perhaps recording how many in a 10cm space for the close-together laid lines. Always include a scale in your photographs, ideally a horizontal and vertical one and use a light sheet to bring out the watermark. You may be able to use photographic software to enhance your images. The quality of the watermark may indicate how long it had been in use for, with paper frames typically in use for 2-5 years. Even ‘the same’ watermark may be slightly different on different sheets because many different frames will have been used by the same papermaker over the years.
Printed reference sources for watermarks include:
- Charles Moïse Briquet, Les Filigranes, 1907: with a focus on French paper watermarks
- Gerhard Piccard, Die Wasserzeichenkartei, 1961-1979: with a focus on European, principally German watermarks
- W. A. Churchill, Watermarks in paper in Holland, England, France, etc. in the XVII and XVIII centuries and their interconnection, 1935
- Edward Heaward, Watermarks, Mainly of the 17th and 18th Centuries, 1950
- Raymond Gaudriault, Filigranes et autres caractéristiques des papiers fabriqués en France aux XVIIe et XVIIIe siècles, available via Gallica: https://gallica.bnf.fr/ark:/12148/bpt6k3371715d.texteImage)
Much work is now being done to make these resources more accessible and Briquet’s catalogue now features at https://briquet-online.at/. The online version allows much easier searching, though a knowledge of French is still required! There is also the Memory of Paper Portal: https://www.memoryofpaper.eu/BernsteinPortal/appl_start.disp and Filigranes for all: https://filigranes.hypotheses.org/. There is also a project, partly based in Cambridge, looking at watermarks also: Digital approaches to the capture and analysis of watermarks using the manuscripts of Isaac Newton as a test case. See https://www.cdh.cam.ac.uk/research/projects/digital-approaches-to-the-capture-and-analysis-of-watermarks/ for further details.
The session ended with a look at some paper from the University Library’s holdings (see document above) and a William Morris paper-making frame. It was great to be able to see some of the paper that had come from the Cambridge Mill.
Thank you to Professor Smith for talking to CAG and the University Library for hosting.
Lizzy Ennion-Smith, Pembroke College