Romanus III. 1028-1034 AD. Class B anonymous follis, 1028-1034 AD. 
Constantinople. 

IC-XC to right and left of bust of Christ facing with nimbate 
cross behind head, square in each limb of nimbus cross, holding 
book of gospels, a dot in centre of dotted square on book.
IS-XS BAS-ILE BAS-ILE to left and right above and below cross 
with dots at the ends, on three steps. 

SB 1823.

Sold on ebay by Axis Mundi Ancient Coins. Dec. 2004.
Winning bid: US $34.00
  Size: 27 mm
  Weight: 9.9 grams
  Reference : Sear 1823