witchbottles
Forum Guru
well they call it an STZ-3 here where the photo is located:It's supposed to be a KhTz-16, but is actually a badly done post war reproduction.
KhTZ-16 - Tank Encyclopedia
The KhTZ-16 was a tractor armed with a 45 mm gun. It was born out of desperation in the darkest hours of Operation Barbarossa in summer 1941.www.tanks-encyclopedia.com
https://medium.com/covilian-military-intelligence-group/the-stz-3-soviet-agricultural-tractor-tank-963ec5a7c1d0
but the KhtZ-16 was the official designation. This photo however, being a postwar mockup has armor plating of plywood