The American M10 tank destroyer (early prototype of the M36 Jackson), armed with a 90-mm T7 gun, during factory tests.
This M10 tank destroyer of US Army was used to test the tank version of the 90-mm M2 anti-aircraft gun at the Aberdeen Proving Ground at the end of 1942.
Source of M10 tank destroyer photo information:
1. ru.wikipedia.org
Location: Aberdeen Proving Ground, USA
Date: November 1942