Thraco-Macedonian Region. Uncertain mint. AR Hemiobol 6 mm, 0.32 g. 5th century BC. 

Crested Corinthian helmet left. 
Crab within incuse square. 

Unpublished. Naumann 32,44.

With permission of Gitbud & Naumann auction 32, Lot 44, June 2015 and two subsequent sales in June 2015 and April 2021.