Three-barreled gun of Armored battery 30 or 30th battery. Soviet military unit which was important in the defense of Sevastopol 1941-1942 during WWII Stock Photo - Alamy
WW2 German, Soviet, Allied militaria, uniforms, awards, weapons history. War relics forum
Why are large recoilless canons used? What is the advantage vs. a standard artillery gun? - Quora
30th battery (Maxim Gorky-I) in Sevastopol, Ukraine (Google Maps)
Maxim Gorky Fortresses - Wikipedia
battery | Острова
Defending Fort Stalin to the Last Man - 1st Battle for Sevastopol | War History Online
Fort maxim gorki sevastopol hi-res stock photography and images - Alamy
The History of Maxim Gorky-I Naval Battery, Sevastopol
World of Ortix: Underworld Day - 30th battery turret of fort Maxim Gorky-I (part one)