Univeral Carrier II Mortar carrier

The Universal Carrier, also known as the Bren Gun Carrier is a common name describing a family of light armoured tracked vehicles built by Vickers-Armstrong. Produced between 1934 and 1960, the vehicle was used widely by British Commonwealth forces during the Second World War. Universal Carriers were usually used for transporting personnel and equipment, mostly support weapons, or as machine gun platforms. With some 113,000 built in the United Kingdom and abroad, it was the most produced armoured fighting vehicle in history.
3 inch Mortar Carrier (Aust)
The Carrier, 3-inch Mortar (Aust) was a design based on the 2 Pounder Carrier with a 3-inch mortar mounted in place of the 2 pounder. Designed to enable the mortar to have 360 degree traverse and to be fired either from the vehicle, or dismounted. 400 were produced and were ultimately sent as military aid to the Nationalist Chinese Army.