Old sterling pin is well marked and old.It is two birds among branches and blossoms. The blossoms and birds breasts are decorated with set rhinestones. I believe it is foreign due to the lettering on the mark which makes not much sense to me. Ma, (looks like small p), lle, (and another small p). Mapllep. Then a sterling stamp. and a third stamp Pat Pend. Size is about 2" x 2". Great condition.