Watch List notes:

PTOLEMAIC KINGS of EGYPT. Ptolemy II Philadelphos. 285-246 BC. AR Tetradrachm (25mm, 14.21 g, 12h). Sidon mint. Dated RY 39 (247/6 BC). Diademed head of Ptolemy I right, wearing aegis around neck / Eagle standing left on thunderbolt; to left, ΣI above Δ; to right, ΛΘ above monogram. Svoronos 756 var. (lower left control mark); DCA 21; CGB 36, lot 260 = CGB 29, lot 47 (same obv. die); Heritage 441, lot 50077 (same dies); Roma E-Sale 4, lot 340 (same dies). Good VF, toned, some roughness, small die break on reverse. Very rare, Svoronos located only a single example of his no. 756, in Athens, but none of this variety is published in the standard references, and only three in CoinArchives.

From the collection of the MoneyMuseum, Zurich. Ex Auctiones 27 (10 December 1996), lot 456.