Auction 309-320 - Great Britain 1840–1841 Europe & Overseas - Day 5

1877, Specification of James Murdoch Napier Perforation Machines, printed pamphlet/booklet, by order of the Commission of Patents for Inventions, No. 4485, priced 8d, contains the original specification on four pages and technical drawings printed upon a double page, additionally included is the 1883 Specification of James Charles Stuart Wallace for Affixing Postage Stamps and Labels, printed over five pages and an additional double page technical drawing of his machine, both are fragile and have some damage, aging, tears and loss to covers, as might be expected, however remarkable items of great historical importance.