[The Art of Papermaking. As explained by W. Heath Robinson]

A complete set of ten 3 3/16 x 3 3/16 inches: 82 x 82 mm. glass printer's slides, each one depicting a humorous image of the art of paper making. Each one printed in black on the inside of two sheets of glass secured together with a thin black tape border. The subjects: 1. "Rag experts selecting the best rag for a special paper" 2. "Carrying the rag to button removing dept" 3. "A busy afternoon in the button removing dept." 4. "The rag soaking tank" 5. "The combination of rag with esparto grass before rolling out" 6. "Rolling out. A new idea for drawing out the fibres to produce a strong sheet" 7. "A new method of accurate cutting, not yet adopted by Thomas & Green Ltd." 8. "Testing a coloured paper for resistance to fading" 9. "The "which is which?" test for the accurate matching of a customer's sample" (signed W. Heath Robinson). 10. An additional plate "The Latest Thing in Paper Making Machines by W. Heath Robinson" (which was not used in the advertisement) with "Printed on 285 white drawing cartridge" on lower margin. The first nine of these drawings were issued, printed in color, on a single board calendar for the paper making firm of Thomas & Green Ltd., Wooburn Green, Buckinghamshire with a 'tear-off' tablet at lower center. The calendar appears in Geoffrey Beare's book Heath Robinson Advertising (Belew Publishing London, 1992) as Beare 119 (with a full-page image on page 177). The description reads: "119. The Art of Papermaking as Explained / by W. Heath Robinson, a calendar / for 1922. Thomas & Green Ltd, / Wooburn Green, Bucks, 1921. / A single board covered in handmade / paper. / 530 x 390 mm / Nine small drawings in full colour / plus mounted tear-off date tablet. / Produced by G. Heath Robinson & / J. Birch Ltd, 17 & 18 Took's Court, / London EC4. / Also published as a press / advertisement in The British Printer, / vol. 34, no. 203, Jan.-Feb. 1922, / facing p. 228." A copy of this book is included with the slides. Beare 119.…