Byzantion, Thrace, AR Tetradrachm. 21mm. 387-339 BC.

Obv: YPY above bull walking left on dolphin; CPR-like 
monogram beneath raised leg.
Rev: Granular quadripartite incuse square.

Schoenert-Geiss 688.
Ex Rollin & Feuardent sale, 9th June 1913, Lot 146 (illustrated).
ex Chris Connell Collection; Ex George Bauer Collection 
(Glendining's, 23 January 1963), lot 1010 

Contributed by P. Tremblay, March 2011