Egypt. Alexandria. Hadrian, 117-138. Diobol. (Bronze, 24.34 mm, 10.31 g). Dated RY 16 = AD 131/2. ΑΥ [Τ ΚΑΙ] ΤΡΑΙ ΑΔΡΙΑ CЄΒ Laureate, draped and cuirassed bust of Hadrian right. Rev. Isis, crowned with disc, horns and plumes, seated right, suckling the infant Harpokrates, crowned with pschent; to right, palm-branch; L Ι ς in field. Emmett 1138. Dattari 1749- 1750. Geissen 1045. Mionnet VI, p. 178, 1137. Milne 1345-1346. BMC 762. RPC III 5813.55 (this specimen illustrated). Rare. Very Fine. From the Curtis Collection. Ex CNG Sale XXXI, 9-10.09.1994, lot 1375. Magnificent Hadrian diobol of great rarity as well as excellent preservation and style, with a vivid original brick red patina of the "desert" that covers the entire coin surface. Specimen from the renowned Curtis collection and especially rare for the representation of the reverse where the well-known "Isis lactans" here unusually appears, which is instead frequently found on the major size Alexandrian bronzes, so much so that RPC III has chosen it to illustrate in the plates of the repertoire.