I don't know if the folks here are interested in this sort of thing (especially for the price!!!), but I found this searching on Abebooks. Is it as rare as the price suggests?
Canada, Department of Defense.
VALENTINE TANK VI & VII. INSTRUCTION BOOK, 1942. PART I - DESCRIPTION; PART II - MAINTENANCE. TOGETHER WITH: VALENTINE TANK VII (CANADIAN BUILT-CANADIAN PACIFIC RAILWAY COMPANY) - ILLUSTRATED PARTS LIST.
Ottawa, 1942. v.p., 180 pp., 372 pp., illus. 2 vols. First edition, in very good condition. Rare
Bookseller Inventory #139827 Price: US$ 450.00 (Convert Currency)
Shipping: Rates & Speed Bookseller: Q.M. Dabney & Co, Inc., PO BOX 849, , Princeton Junction, NJ, U.S.A., 08550
http://www.abebooks.com/home/QMDABNEY/