This is an unusual find. It is a copy of the Barclay anti-aircraft gun only smaller and marked Japan. Probably post World War II and was a knock off of a Barclay. It is a smaller that the Barclay standing 2 1/2 inches high. It is free standing and has most of the original paint, please look at the picture for paint condition. I have several other military toys so take a moment to check my shop. I discount shipping charges for multiple purchases. I’ll send an adjusted invoice when you but more than one item. Thanks for visiting.