German 152 mm navy gun in bunker of the Batterie Le Chaos, part of the Atlantikwall at Longues-sur-Mer, Normandy, France Stock Photo - Alamy
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Artillery piece hi-res stock photography and images - Alamy
152 mm gun M1935 (Br-2) - Wikipedia
A right front view of an Iraqi D-20 152mm gun-howitzer that was captured during Operation Desert Storm. A captured Type 59 130mm field gun is at right - PICRYL - Public Domain
Meet Koalitsiya-SV Self-Propelled Artillery Gun, Russia's Answer to NATO Counter-Battery Operations
152 mm gun M1935 (Br-2) - Wikipedia
File:Czech Army 152mm howitzer battery (10958634703).jpg - Wikimedia Commons