Geta AE16 of Nicaea, Bithynia. AD 198-209. 2.69 g. 

GETAC KAICAR, bare head left.
NIKAIEWN, bull standing right.

SNRIS Nicaea 23b. 

With permission of Laurent Bricault, Feb. 2018.

(SNRIS = "Sylloge Nummorum Religionis Isiacae and Sarapiacae")