Maximinus I, AE28 of Anchialus, Thrace. 235-238 AD. 

Obv: AYT MAXIMEINOC EY CEBH AV, laureate and draped bust right. 
Rev: OVLPIANWN AGXIALEWN, Triptolemos right in biga of winged serpents, 
Triptolemos scattering corn seeds with his right hand. 

AMNG 576; Varbanov 584 (this coin), Moushmov 2907

Courtesy of akropoliscoins.com, March 2011.