The War Office, 1st ed., 1931. Vii + 219 pp., various diagrams. Blue cloth ; 19 x 12cm. Bump to 1 corner + a little fading to covers. SUPPLEMENT : August 1936. War Office, 1st ed., 1936. 11 pp., 4 diagrams + a large, folding plate of diagrams at rear + 1 photo tipped-in to the front inside cover. Soft c.c., 18 x 12cm. Tape to spine, crease to front cover o/w GOOD+ and the main book is V.G.+. 'These instructions are for the information and guidance of armourers in the repair and general maintenance of the weapons, etc., entrusted to their care.' Published in 1931, this book covers Rifles, Bayonets, Scabbards, Pistols, the Hotchkiss, Lewis, and Vickers Machine Guns and Bicycles. It is accompanied by the first supplement which was which published in 1936 and features the pistol, revolver, No. 2, Mk. I 38-inch with 5-inch barrel. Contains a large, folding plate with various diagrams illustrating parts of the pistol.