ἐπίσημον

A. distinguishing mark, device, badge, Hdt. 1.195; badge or bearing on a shield, v.l. in Id. 9.74; ensign or flag (or figurehead) of a ship, Id. 8.88, cf. Hp. Ep. 17; device on a coin, Plu. Thes. 6; on a signet, SIG 2588.3 (Delos, ii B.C.); serial number, PPetr. 3p.203 (iii B.C.); ἐπίσημα,τά, hieroglyphics, OGI 56.64 (Canopus, iii B.C.).

II. . generally, mark, imprint, τῶν ὁπλῶν S. Ichn. 102.