Railway guns

TM-3-12 is seen in the foreground, behind it transporter TM-1-1-180 is seen. TM-3-12 was made in the late 30s of the last century at the Leningrad Metal Plant (LMZ). During WW2, this kind of guns went around the fort (changed positions) and smashed the invaders (this applies to TM-1-180). Actively used for counter-artillery fight.