The Crossley Armoured Car combined a tough and cheap 50 hp engine, 5 ton chassis built by Crossley Motors with a body by Vickers. It had a large hemispherical turret with four machine-gun mounts and the crew area was lined with asbestos to keep the temperature down. The entire body could be electrified to keep large crowds at bay and the cars were originally fitted with narrow, solid tires which made them unstable. 451 were built between 1923 and 1925 mainly for internal security duties and Frontier operations in India. When the Royal Tank Corps handed them over to the Indian cavalry that was being mechanized in 1939, the Crossley chassis were worn out and the bodies were transferred to Chevrolet truck chassis with pneumatic tiers. They served in the Middle East (Iraq, Syria and Persia) in the early years of the war and were then gifted to the Iranian Government. (Artwork by David Bocquelet)