Marine

US Marine views a wrecked, burned-out Japanese gun following the taking of Tinian.  Given the mess, I would have found it difficult enough to work out what sort of gun it was, exactly.  However, as the original caption indicates that it is a "25mm Naval model machine cannon", and as the appearance seems to fit, the weapon is almost certainly a Type 96 25mm anti-aircraft/antitank automatic cannon (whether the single or dual-barrel version I am really not sure, given the damage).  Best regards, JR.