Skepsis in Troas, 2 BC. -14 AD., Augustus for Gaius and Lucius Caesares, Æ 14, RPC 2326.

Skepsis in Troas, Augustus for Gaius and Lucius Caesares, ca. 2 BC. -14 AD.,
Æ 14 (ø 14 mm / 2,31 g), bronze, axes coin alignment ↑↓ (ca.180°),
Obv.: [ΓAI] - KAIΣAP / {AN} , bare head of Gaius Caesar r., circular countermark {AN} or {NA} behind.
Rev.: [ΛEV]-{ΣK}H - KAIΣAP , bare head of Lucius Caesar r.
RPC I, p. 394, no. 2326 (7 pieces listed, two in London coll., 5 in Berlin coll. (Imhoof-Blumer), two with this countermark) ; Howgego GIC - .

Three countermarks are listed in RPC I, p. 394 on coins nos. 2325-6 of the era as "N", looks like the A-part was always invisible or lost.
Maybe countermarked at ANtandros, Troas ? Antandros issued no own coins during Augustus´ reign.

Thanks to “shanxi“ fo the ID support