"US" brass piece of ??

[port ewen ace]

cast brass, 2 3/8" high, 1 3/8" wide. dug in Ulster county, NY

 

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[1320]

Sure it's an "S"?

 

[nsdq]

U.S mail badge from a motorcycle maybe ?

 

[NOLA_Ken]

possibly part of an old trunk latch?