Sicily. The Sikeliotes, AV 25 litrae or quarter-stater. 
12mm, 2.07 g. Morgantina mint. 

Head of Athena right, wearing crested Corinthian helmet; two dots behind neck, thunderbolt behind head.
SIKELIWTAN, Owl standing half right, head facing, 
wings closed. TIS or HS monogram in right field.

Hoover HGC 907 (this coin) otherwise unpublished.

With permission of Nomos AG, May 2015.