Drawings of military tanks
/1: 1/8 scale model tank General Sherman, plan and elevation hull top, drg. no. T.D.R.41 (68.5 x 101.5cm);
/2: as /1, front, side and rear elevations, drg. no. T.D.R.40 (71.5 x 170cm);
/3: Vanguard (Valentines VIII & IX), general arrangement of turret with 6 pdr. mtg., 'scale 1/2 c.m. = 1 inch', drg. no. 25349.T. (77 x 140cm). Bears stamp of Vickers-Armstrongs Ltd., Elswick, Newcastle-upon-Tyne. /1 & /2 are stamped 'Secret'.