.50 Caliber Anti-Aircraft Gun
The Working End of a .50 caliber anti-aircraft Gun. Note that a 90mm Gun is right behind it. With the Marine 9th Defence Battalion on Rendovo, July, 1943. (scanned by HOS Bandit)
This is a companion discussion topic for the original entry at https://www.ww2incolor.com/gallery/us-marines/33651/.50-caliber-anti-aircraft-gun