THRACE, Byzantion. Circa 80-76 BC. AR Tetradrachm (36mm, 16.26 g, 12h). In the name and types of Lysimachos. 

Diademed head of the deified Alexander right, with horn of Ammon.
Athena Nikephoros seated left, left arm resting on shield, transverse spear in background; 
RADT monogram in inner left field, BY on throne, ornate trident in exergue. 

SNG Cop 1138; Müller 192; SNG Tübingen 204; Paris HS 409.1972; Mionnet I, 98.

With permission of cngcoins.com, auction 93, Lot 101, May 2013