Bloodstone (Heliotrope) Carved Initial Pin Brooch

This listing is for a vintage initial pin/brooch.

Carved out of Bloodstone. The initials are either MPB or PBM.

Seems vintage due to pin back style. 

The end of the pin is SUPER sharp. I would think the pin/brooch would have been used on a heavy coat or hat due to the sharpness and length of the pin.

There is some damage on the top, see photos.

Measures about 1.5" x 1.5"

From a smoke free home.

CL - 1