Plautilla AE15 of Byzantion, Thrace. AD 197-217. 3 g. 

F PLAYTILLA C, diademed  and draped bust right.
BYZANTIWN, dolphin-entwined trident.

Varbanov 1813; Schönert-Geiss, Byzantion II, 1599. 
2.39 g

With permission of Numismatik Naumann auction 93, Lot 265, Sept. 2020.

_byzantion_Varbanov_1813