Brt-534. Wt = 1.93g. Diam = 18.0mm
Photo from Bob Johnston

Wt = 1.89g.
Photo from Bombay Auctions, sale 5, lot 483

Wt = 2.13g. Axis ↑↓
Photo from Noonan 8^th Feb ’23 (Puddester), lot 253