Brt-209. Wt = 2.95g. Diam = 17.0-17.3mm. NB top left crescent on reverse could be mistaken for 2 dots

Au (%)	Ag (%)	Cu (%)	Zn (%)	Ni (%)	Sn (%)	Bi (%)	Pb (%)	As (%)	Fe (%)
91.9	3.97	3.86	0.07	0	0.08	0.02	0	0	0.09
91.49	3.94	4.44	0.06	0	0	0	0	0	0.07

Stevens Collection

Wt = 2.92g
Photo from Todywalla, sale 102, lot 931