Beschreibung:

CALCULATING MACHINES]. -- GRIMME, Natalis & Co. Brunsviga [cover title]. N.p, n.d. [ca. 1908]. Original gray printed wrappers. OOC 313. -- [GRIMME, Natalis & Co.] "Improve your game!" Clipping from the Manchester Guardian , November 14, 1911. OOC 314. -- [GRIMME, Natalis & Co.] W. H. Colt Calculating Machines. Circular letter dated July 1913, reproduced from typescript on letterhead stationery. OOC 315. -- TRIUMPHATOR CALCULATING MACHINE CO., LTD. The patent Triumphator calculation machine. Description and facts about its utility and capacity [cover title]. Liverpool, [1909]. Original red printed wrappers. OOC 388. -- TRIUMPHATOR CALCULATING MACHINE CO., LTD. The patent Triumphator calculation machine. Description and facts about its utility and capacity [cover title]. Liverpool, [1910]. Original red printed wrappers. OOC 389. -- [TRIUMPHATOR CALCULATING MACHINE CO., LTD]. Typed letter signed dated 16th April 1910, from C. Beveridge, director of the Triumphator Calculating Machine Co, to H. M. Bowden of the Great Central Railway, Manchester. OOC 390. For more information on these items see Hook & Norman, Origins of Cyberspace .