Head right, hair - four large strands ended with hook, crescents around. / Androcephaly horse, bridled, driven by rider, below is hippocamp right. See:- https://www.cgbfr.com/venetes-region-de-vannes-statere-dargent-a-lhippocampe-ttb-,bga_645088,a.html
Date: ca.60-50BC
Diameter: 20mm
Weight: 6.88g
Catalogue ref: DT -, cf 2306–7, (D)LT not in cf 6811