389 pp, approx A4 size, packed with information on the equipment of all three of Britain armed forces; guns, sights, vehicles, tanks, ships, engines, radar, Comms, Missiles, targets etc etc.
Loads of illustrations. Published in 1969 for overseas buyers, basically as a one stop shop for defence requirements, published by the MoD. A superb big heavy book, has obviously been much referred to, and is a scarce publication as most would have been scrapped by now.