ISLANDS off THRACE, Thasos. Circa 412-404 BC. AR Tritartemorion (7mm, 0.44 g, 10h). Head of satyr right / Two dolphins within incuse square; anepigraphic. Le Rider, Thasiennes 12 var. (ethnic on rev.); HGC 6, 340 var. (same). Lightly toned, porous. Near VF. Apparently unpublished without ethnic on reverse.
The lack of ethnic and deeper incuse square on the reverse suggest that this may be the first issue of these tritartemoria.