UNKNOWN ANTIQUE VINTAGE OVAL JAPAN MEDAL PIN FIREFIGHTING FIRE BRIGADE MEDAL?

Description

I RECENTLY PURCHASED THIS AT AN ANTIQUES MARKET IN CONNECTICUT.  IT IS OVAL, MEASURING ABOUT 1.75 INCHES LONG AND SEEMS FAIRLY OLD.  NOTE: THERE IS NO PIN ON THE REVERSE SIDE.   I BELIEVE THIS IS RELATED TO FIREFIGHTING OR FIRE BRIGADE.
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