Athens, fourée tetradrachm, 15.05 g. Emergency Issue, 406-404 BC, 

Helmeted head of Athena right, wearing Attic helmet.
AQE, Owl standing right, head facing, olive sprig and crescent at upper left. 

Sear SG 2535; Svoronos plate 15, 12-18; Starr plate XXIII, 12. 

Near the end of the Peloponesian War against Sparta, Athens 
issued silver plated bronze coins. This is a rare example of early "money of necessity" or "siege coinage" to cover the 
interruption of the silver production in Laurion.

With permission of Fritz Rudolf Künker GmbH & Co. KG - Auction 104, Lot 208, Sept. 2005.