Late Roman monogram, no obverse ... but no problem for me

This is a later Roman monogram that I picked up many years ago. It has no visible obverse design at all yet it still is quite an appealing coin ... at least to me.


Obv: Blank
Rev: Monogram of Zenonis (wife of Basiliscus)

To me the obverse is very secondary to the monogram on these scarcer late Roman types but I'm not sure some collectors would agree. In fact, I can't think of any other ancient issue where I can make this claim.