ARCHIVE ON US ORDNANCE TESTS OF TREADWELL PATENT CANNON, 1843.

A small, but interesting archive of six letters sent by US Army Chief of Ordnance, LTC George Talcott and his assistant, Captain William Maynardier during 1843 and 1844 to Professor Daniel Treadwell in Cambridge, Massachusetts regarding cannon of Treadwell's patented design, which the Army was then considering for purchase. Treadwell (1791-1872) was an American inventor. Amongst his most important inventions was a method of constructing cannon from wrought iron and steel. From 1841-1845 he devised a method for making built-up guns which resembled the process that was subsequently introduced by Sir William Armstrong. He patented it in 1844 through an agent and received government contracts, but the great cost of his cannon prevented a demand for them. The letters from Talcott relate to initial inspections and later trial tests performed on the cannon at Fort Monroe. 6 ALS, 5 in Talcott's hand and one in Maynardier’s hand. Item #99

Price: $675.00