Mother Of Pearl Vintage Royal Arcanum Fraternal
(VMC 1105)
Lapel Pin
Excellent pin measures 18 mm 3/8" across.
I do not know what the centre metal piece is composed of, what I do know is that my magnet is not attracted to it.
I suspect it's copper with enamel and gold plate.
It raises out so that the mother of pearl base can be cleaned.
Screw back with a metal stop, text on the brass back says:
511
W.BALTO
ST
WM BAUMGARTEN BALTIMORE