Geta as Caesar. AE17 of Argos, Argolis. 198-209 AD. Hemiassarion, 3.10 gr. 

CEP (T GETAC K), bare head right.
ARGEIWN, Hekate triformis standing facing. 

BCD Peloponnesos 1218.5 (this coin). 

Very rare.

Used with permission of CNG coins, www.cngcoins.com, 
Electronic Auction 147, lot 37. 
Closed 6th September 2006. Sold for $70.