Brt-111. Wt = 0.83g. Diam = 8.0-8.5mm

Stevens Collection

 

Wt = 0.78g. Diam = 7.3-8.3mm

Photo from Bob Johnston

 

 

Photo from Hemanth Chopra

 

 

Photo from Hemanth Chopra

 

Wt = 0.87. Diam = 7.9-8.1mm

Photo from Bob Johnston