CZECHOSLOVAKIA Gold Tone Filigree Pin with Black Plastic Cameo 1 5/8" In Diameter

CZECHOSLOVAKIA Gold Tone Filigree Pin with Black Plastic Cameo 1 5/8" In Diameter. I was getting this pin ready to sell and decided to find out if it was plastic or glass and since it is cold out I couldn't tell from the feel. I decided to take the cameo out of the frame and LO AND BEHOLD, it was marked CZECHO SLOVAKIA on the back. It is definately plastic and has a nick in the edge which is covered up by one of the prongs on the setting. I do not know the age of this piece but would guess from the 60s. The metal is not marked. It is in good condition otherwise.