The Panzerjäger I (English: Tank Hunter 1) was the first of the German tank destroyers to see service in the Second World War. It mounted a Czech Škoda 4.7 cm (1.9 in) cm PaK (t) anti-tank gun on a converted Panzer I Ausf. B chassis. It was intended to counter heavy French tanks like the Char B1 that were beyond the capabilities of the 3.7 cm PaK 36 anti-tank gun and served to extend the life of the obsolete Panzer I tank chassis. 202 Panzer I were converted to the Panzerjäger I in 1940 and 1941. They were employed in the Battle of France, in the North Africa Campaign and on the Eastern Front.
Additional Information: en.wikipedia.org/wiki/Panzerj%C3%A4ger_I