ZENOBIA. 271-272 AD. Antoninianus (3.65 gm). Struck spring - early summer 
      272 AD. Emisa mint(?). S ZENOBIA AVG, diademed and draped bust right on a 
      crescent / IVNO REGINA, Juno standing facing, head left, holding patera in 
      right hand, sceptre in left, peacock at her feet; star in left field. H in exergue.

RIC V-2, 2 var. (no fieldmark or exergual mark star described)
 
Extremely rare. 

Courtesy of Numismatik Lanz, sold for 4,500 Euros.