$800.00 
Seller:     sothebys_london

John I, 969-976, tetarteron
nomisma, Constantinople,c. 24 mm. diameter, 4.08 g.

nimbate bust of Christ facing, holding book of
  Gospels and raising right hand in benediction, rev.,
  John, holding patriarchal cross, being crowned by
  the nimbate Virgin; Manus Dei above his head (DOC
  6a; S. 1789; Hunt 731),

  Condition: very fine and rare

22-25th May 2000