Zoe and Theodora, AV histamenon nomisma. 

+QKE RQ TAC RACILICCIC, bust of Mary facing holding the infant Christ 
before her. MR-QV to left and right.
ZOHN S QEODWR, facing busts of Zoe on left and Theodora on right,
each wearing crown, saccos and maniakion and holding labarum
between them.
DO 1; Sear 1827.

I am not sure where the image shown originally came from - it was in 
the folder in 2009 but not added to the appropriate page. The 
obverse was, unfortunately, missing.