Brt-501p6. Wt = 0.71g. Diam = 10.2-10.5mm. Axis ↑↑

Photo from Bob Johnston

 

Wt = 0.72g. Axis ↑↑

Photo from Noonan 8th Feb ’23 (Puddester), lot 240

 

Wt = 0.71g. Diam = 10.2-10.5mm. Axis ↑↑

NB First digit of AH date missing

Photo from Bob Johnston