£100
W. Heath Robinson: 'The Gentle Art of Reproducing', London, The Practical Etching Service Ltd, [nd, c.1931], first edition, 28pp including 11 full page monochrome illustrations by Heath Robinson, original pictorial card covers (31 x 23.5cm). One of Robinson’s rare commercial productions, this being for the Practical Etching Company Limited and describing the company’s various processes for the reproduction of pictures. Illustrated with the fantastical machines and contraptions for which Robinson became so famous.