Egypt. Alexandria. Antoninus Pius, 138-161. Tetradrachm (Billon, 24.12 mm, 12.81 g). Dated RY 8 (= 144/5). ΑΝΤωΝΙΝΟϹ ϹΕΒ ΕΥϹΕΒ Laureate head right. Rev. Apollo Didymeus standing, facing, holding stag and bow; in front, Egyptian altar and in field, L-H across field. RPC IV. 4, 727/9 (this coin). Dattari-Savio 2137 (this coin) & pl. IX (this rev. Illustrated). Geissen 1457 (altar in left field). Emmett 1358. Cf. Savio A., Tetradrammi alessandrini, pp.82-86. Minor porosity. Good Very Fine. Rare. Ex Giovanni Dattari Collection 2137, Il Cairo. Ex Naville Numismatics Ltd. 44, 04.11.2018, Lot 300. This coin evidences as, the cult of Apollo Didymeus at Miletos, achieved a high level of fame throughout the ancient world, including Egypt. The reverse of this interesting tetradracm, ex Dattari Collection, shows us a divinity extraneous to the Egyptian and Greco-Egyptian cult: it is the statuary figure of Apollo in the Didymeion of Miletus, famous ionic Sanctuaray-temple which competed with the seven wonders of the ancient world. Scholars agree on the hypothesis that the one depicted on this coin, as well as on the others in mixture or bronze of the years 7 to 11 of Antoninus Pius, is a faithful reproduction of the original statue of the temple (cfr. Vogt, J. I, p. 121. One could also think, with regard to the motif of this image on Alexandrian coins, of a semi-explicit, but nevertheless indicative form of alliance (OMONOIA) between the cities of Didyma and Alexandria.