Picked this up yesterday at a home sale that had 30's glass although not interesting, however this small Ormolu vanity dish (4" diamater, 1" height) was interesting & at first I thought French then in a very small etched circle (had to use a loop) was Czecho-Lovakia & the letters F, B, S in a triangular shape. Does anyone know who/what FBS stands for? Thanks, Ken