Watch List notes:

BAKTRIA, Greco-Baktrian Kingdom. Eukratides I Megas. Circa 170-145 BC. AR Tetradrachm (32mm, 16.96 g, 12h). Helmeted, diademed, draped, and cuirassed bust right / BAΣIΛEΩΣ MEΓAΛOY around, EYKPATIΔOY in exergue, the Dioskouroi, holding palm fronds and spears, on horses rearing right; monogram in lower right field. Bopearachchi 6E; Bopearachchi & Rahman 240-242; SNG ANS 465; MIG Type 177ee; HGC 12, 131. Iridescent toning, underlying luster. Superb EF.

Ex Stack's Bowers Galleries (2 August 2017), lot 20059 (there in NGC encapsulation 3588719-002, graded Ch MS, Strike: 5/5 Surface: 5/5).