#170 Pietra Dura Fly

A fly inlay in cream and black hardstone (pietra dura) with transparent rock crystal wings. The black stone border is partially chipped away from 8:00 to 10:00. Both etched and drawn (under the wings) detail. Another example of this button is shown BBB PL 149, #16. Yellow metal rim mount with support bar and loop shank. Est. selling price is $60-100.