Geta, AE17 of Serdica, Thrace. AD 209-212. 4.85 g

L CEP GETAC K, bare-headed, draped bust right.
CERDWN, Altar surmounted by coiled serpent, head left.

Apparently unpublished. 
Contributed of "CCKK" of ancients.info forum, Nov. 2009,
thread 2805.