Watch List notes:

PTOLEMAIC KINGS OF EGYPT. Ptolemy II Philadelphos, with Arsinöe II, Ptolemy I, and Berenike I, 285-246 BC. Tetradrachm or Half Mnaieion (Gold, 20 mm, 13.86 g, 12 h), Alexandria, c. 285-272. ΑΔΕΛΦΩΝ "brothers". Jugate busts of Ptolemy II, diademed and draped, and Arsinoe II, diademed and veiled, to right; behind, Gallic shield. Rev. ΘΕΩΝ "Gods". Jugate busts of deified Ptolemy I, diademed and wearing aegis, and deified Berenike I, diademed and veiled, to right. CPE 314. Olivier & Lorber 268 (AV18/RV50). SNG Copenhagen 133. Svoronos 604. Bang on obverse edge at 12h and a few scattered marks, otherwise, good very fine.