Egypt. Alexandria. Trajan, 98-117. Diobol (Bronze, 24.00 mm, 6.89 g). RY 16 = AD 112/3. ΑΥΤ TPAIAN CЄB ΓЄPM ΔAKIK Laureate head right. Rev. Isis-Thermouthis in form of Ureus serpent, erect right, wearing the Isis-crown and enfolding caduceus(?) and stalk of corn; date around, [LI] Ѕ. RPC III, 4759. Cf. Dattari-Savio 7285. Emmett 643. Very rare. Good Very Fine. Ex Roma Numismatics Ltd., Auction 66, 02.01.2020, lot 716. The element that determines the rarity of this beautiful Trajan’s obol is the engraving on the reverse where the traditional auspicious Agathodaemon does not appear but instead is Isis-Thermouthis in the form of a vigorous cobra with the Isiac crown on his head identifying him precisely in this deity who protected the grain and the crops and that here has an evident auspicious and propitiatory intention.