Sabina, AD 117-137. Roman AR denarius, 3.29 g, 20 mm, 7 h. Rome, AD 128-134. Obv: SABINA AVGVSTA HADRIANI AVG P P, diademed and draped bust, left. Rev: IVNONI REGINAE, Juno standing left, holding patera and scepter. Refs: RIC 401b; BMCRE 909 note; RSC 37a; RCV --; Strack 370; CRE 56. Notes: Ex Emporium Hamburg, Auction 72, lot 499, November 13, 2014; hammer 250 Euro. It's not the rarity that Temeryazev and Makarenko would lead one to believe, but it is scarce and available only a few times a year at auction. The coin with the left-facing bust comes in several minor varieties. The bust may depict the empress with a diadem (as mine), or wearing a wreath of corn ears (as BMCRE 909 and CRE 57). Here's the British Museum specimen, but which has a wreath of corn-ears instead of a diadem: There are other variations which are poorly attested in the literature. The obverse inscription may lack P P (RIC 403a, Cohen 44). Mattingly (note 909, p. 355) reports minor variations in the reverse figure, such as with a spear instead of a scepter, or an open right hand instead of a patera. The existence of these obverse inscription and reverse variants is questionable, and I suspect they represent mischaracterization of coins with unclear legends or devices. Here's the note on 909 in BMCRE, p. 355: My coin is a double-die match to this example sold at Rauch Auction 89, lot 1571, December 5, 2011: It's also a double-die match to this specimen at the coin collection of the Professorship for Ancient History at the University of Eichstaett-Ingolstadt.