Sabina, Augusta, 128-136/7. Denarius (Silver, 19 mm, 3.30 g, 1 h), uncertain mint in the East. SABINA AVGVSTA Diademed and draped bust of Sabina to left. Rev. COS III Large crescent with eight-pointed star above. BMC p. 361, (b). Cohen -. NAC 101 (2017), 268 (same dies). RIC -. Extremely rare. Good very fine.
This is a hybrid issue from Hadrian's uncertain eastern mint, combining an obverse of Sabina with a reverse of Hadrian in error.