1.75" very well made with metal back and barpin. Top shows the early version of the Golden Arches. At center is designated rank of "Sergeant" followed by serial number "28557." Center right has small raised bump caused when the reverse barpin was put in place. Otherwise just the tiniest trace of a tiny dark area at bottom edge. Still displays NM and the first we've seen from the 1960s for a club we did not previously know existed. Rare.