Dating to the early 1900s may I offer this gold covered sterling silver and red, white and blue enamel lapel or collar pin for a member of the Federation of Post Office clerks. Old fashion c-catch at the back to hold the pinstem in place.
Hallmarks: Sterling along with a makers mark that is hard to read - looks like a Union symbol.
Size: Small at 1/2" x 1/2"
Weight: 1.2 grams
Too cute and a wonderful vintage find for the person who collects Post Office memorabilia!