What is this Snap On emblem from?

[Mick56]

I do a lot of metal detecting for old coins, and I found this Snap On emblem somewhere. Any body know what it's from? About 1-1/2" long, 1/16" thick, nothing on the back, probably made of aluminum.

 

[zkling]

Zipper pull? What does the end(s) and back look like?

 

[Mick56]

The ends and back are plain.