This converted Panzerkampfwagen 38(t), formerly a Skoda tank, was outfitted with a 7,5 cm German PaK 40 anti-tank gun. German designation Sd.Kfz. 138. The self-propelled tank destroyer was one of the stopgap solutions before better German anti-tank vehicles were available.
Different types of Marder III existed, one with a Russian 76,2 cm anti-tank gun and two a German Pak 70 anti-tank gun, all based on the Panzer 38(t).