7,5 KwK part to identify

[nemps]

Can somebody ientify ths object . It must belong to some 75 kwk gun because similar item was sold some time ago in ebay and had markings 7.5 Cm Kw.K

But what gun, where exactly and what vehicle.

[me6_130]

7,5cm Kwk usually refers to the short barreled one, used in early PzKpfw IV, Kwk 37/L24.

Carles