Approximately 8.80 cm long.
The turret rotates.
All-metal construction.
The Mark IV was a British tank of the First World War. Introduced in 1917, it benefited from significant improvements over the Mark I, but the improved intermediate versions (Mark II and Mark III) were produced only in small numbers for training purposes. The main improvements were increased armor thickness, relocated fuel tanks, and easier transportability. A total of 1,220 Mark IVs were built: 420 Males (the various Mark IV configurations were named Male, Female, and Refueler), 595 Females, and 205 Refuelers (unarmed vehicles used to transport supplies), making it the most produced British tank of the war.