Grynion, Aeolis, AE16, ca 3rd Century BC. 3.42 g. 

Laureate head of Apollo facing slightly left.
GYRNHWN, mussel shell. 

BMC 1; SNG Cop 202ff; SNG von Aulock 7689; Laffaille, "Choix de Monnaies Grecques en Bronze," 147 = Laffaille 462 (this coin). 

Ex Maurice Laffaille Collection (Münzen und Medaillen Auktion 76, lot 462 (19-20 Sept 1991); Vinchon Auktion 1959, lot 537; Géneral de Grandprey Collection (Ciani auction lot 163, Feb. 1935.

Triton V Sale, 15 Jan 2002, lot 454.
 
Sold for USD 600.

Used by permission of Classical Numismatic Group, www.cngcoins.com.