Julia Mamaea, AE34 of Tium, Bithynia, AD 222-235. 23.01 g.

IOYLIA MAMAIA AYG, draped bust right, wearing stephane.
TIANWN, Zeus standing left, holding patera and sceptre, eagle at foot left, Gaia and Thalassa reclining right and left below, all surrounded by the twelve signs of the Zodiac.

Geoffrey Cope collection 18899778; RPC 30121 temp.
Apparently unique. 

With permission of NAC auction 144, lot 1134, May 2024 (Geoffrey Cope Collection sale). 
Ex Leu sale 50, lot 347, 1990.
See article: www.academia.edu/18899778.