Engraver's Error

CNG 99, Lot: 52. Estimate $500. Sold for $1000. This amount does not include the buyer’s fee.

KINGS of THRACE, Macedonian. Lysimachos. 305-281 BC. AR Tetradrachm (26mm, 16.54 g, 9h). Lampsakos mint. Struck 297/6-282/1 BC. Diademed head of the deified Alexander right, with horn of Ammon / BAΣIΛE[ΩΣ] AYΣIMAXOY (sic), Athena Nikephoros seated left, left arm resting on shield, spear behind; aphlaston to outer left, HP monogram to inner left. Thompson 48; Müller 356; SNG France 2537. Good VF. Interesting engraver’s error.