Byzantine lead seal - Maurice Tiberius? - cruciform monogram

Ancient Coins - Byzantine lead seal - Maurice Tiberius? - cruciform monogram
zoom view
Virgin Mary on the obverse.  22mm
 
The previous owner thought this was Nicephorus Basilacius.  I'd bet not.   
 
The Byzantine lead seals are such a broad field it is hard to find any reference books.  The M K lead me to believe it is a lead seal of Maurice Tiberius but the iconography of the obverse is not of that time period.    If you have any insight to share, please do so. 
 
An alternate possibility is where Naumann believe a similar piece is of Manuel
https://www.acsearch.info/search.html?id=3828571 
 
 
Price SKU: brna162
US$ 40.00
  • € 36.10
  • £ 30.54
  • AUD 58.49
  • CHF 39.55
  • CAD 53.09

Rates for: 12/05/19

Ships from: United States