The 37 mm kanon P.U.V. vz. 37 was a anti-tank gun produced by the Škoda Works

Škoda Works

Škoda Works was the largest industrial enterprise in Austro-Hungary and later in Czechoslovakia, one of its successor states. It was also one of the largest industrial conglomerates in Europe in the 20th century...

 that saw service in World War II

World War II

World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

. Originally designed for the Czech Army, some were also sold to Yugoslavia. A number were appropriated by the Germans after German occupation of Czechoslovakia

German occupation of Czechoslovakia

German occupation of Czechoslovakia began with the Nazi annexation of Czechoslovakia's northern and western border regions, known collectively as the Sudetenland, under terms outlined by the Munich Agreement. Nazi leader Adolf Hitler's pretext for this effort was the alleged privations suffered by...

 in 1939 and used under the designations 3.7 cm PaK 37(t). Captured Yugoslav guns were used under the designation of 3.7 cm Pak 156(j). Slovakia acquired 158 when it declared independence from Czechoslovakia in March 1939.

The gun had a small shield and wooden-spoked wheels, although some were fitted with pneumatic wheels.