with the Hotchkiss machine guns removed, a coaxial Vickers machine gun added and the commander's post shifted somewhat further back as in the original position he had been in a very real danger of being hit in the stomach by spent shells ejected by the main gun's breech block. Mark IIA: Twenty vehicles newly built in 1930. The bevel was removed from the rear of the turret and an armoured electrical ventilator fan added on the left side. Mark II**: in 1932 the remaining 44 Mark II's were brought to Mark II* standard; in addition a wireless set was fitted in an armoured container at the back of the turret. the weight rose to . Mark IIA*: the twenty Mark IIA's brought to Mark II** standard. Medium Mark II Tropical: in 1928 five tanks were shipped to Egypt. They were modified by fitting insulation against the heat, such as spaced asbestos plates on the upper surfaces. Mark IIA CS: some Mark IIAs were later rebuilt as close support vehicles, their main armament replaced by a 15-pounder howitzer, mainly intended to give smoke cover, though some HE shells were also carried. Each company headquarters was equipped with two of these vehicles. The weight was increased to 14 tons. Mark D : the Vickers Mk. D was a one-off design built for the Irish Free State and delivered in 1929. It had a more powerful, water cooled, rear mounted, 6-cylinder Sunbeam Amazon petrol engine, developing at 2100 rpm. A 6 pdr gun was fitted and as many as four Vickers .303 (7.7 mm) machine guns. The tank was scrapped in 1940. Medium II Bridgecarrier: an experimental project to convert any Mark II optionally into a bridgecarrier by fitting the bridge girders to the vehicle together with a contraption to launch the bridge when finished. This proposal was not adopted. Medium II Female: Under the command of Lieutenant J.T. Crocker in 1927 two tanks were built for the Indian Government. The turret had no main gun but four Vickers machine guns. Although they were in fact Medium II's and always called that way, their official designation was Tank Light Mark IA Special (L) India. Medium II Box Tank: This was a single command tank, converted from a Medium II in 1928, by removing the turret from the fighting compartment and fitting a large rectangular superstructure. Its only armament was a single machine gun