The Soviet 107mm M1938 mortar was a scaled-down version of the 120mm M1938 mortar intended for use by mountain troops and light enough to be towed by animals on a cart.
107mm mortar M1938 in White Eagle Museum
The Ordnance ML 4.2-inch mortar was a heavy mortar used by the British Army during and after World War II.
Ordnance ML 4.2-inch mortar on mobile base plate
Image: The British Army in North west Europe 1944 45 B10448
Image: The British Army in Sicily 1943 NA5666
Image: The British Army in Burma 1945 SE4463