Original U.S. WWII Inert 37mm M80 Armor-Piercing Round For The Browning M4 Autocannon in Storage Container - All WWII Dated Russian Maxim 1910 In the case of the

In the case of the US Air Forces

1939 and awarded for service in China at any time from the 12th through the 20th years of the Shōwa period — Shōwa 12-20 (1937–1945)

however this may have been after the original conversion

There are also KINSUJI and SUNAGASHI visible above the temper line

Original U.S. WWII Inert 37mm M80 Armor-Piercing Round For The Browning M4 Autocannon in Storage Container - All WWII Dated Russian Maxim 1910 In the case of theOriginal Item: Only One Available. This is a lovely, inert example of a 37mm M80 armor piercing round as used with the Browning M4 Autocannon. The round is totally inert and is unable to be rendered live again. The round is in compliance per the current BATF standards governing ordnance. Not Available For Export. Officially termed the "Armor piercing shot, 37 mm, M80 standard", the round was developed because the overall length of the 37mm M 74 AP T