Watch List notes:

BYZANTINE EMPIRE. Michael VI Stratioticus, 1056-1057. Tetarteron 1056/1057, Constantinople. No legend. Facing bust of the Virgin, nimbate, raising both hands. She is wearing pallium and maphorium, monogram MP on left, ΘV on right. Rv. +MIXAHL - AЧTOCRAT Crowned figure standing on footstool, facing, wearing crown, saccos and loros, long cross in right hand, akakia in left. 4.06 g. Sear 1841. DOC 2.2. Very rare. Broad planchet. Extremely fine-uncirculated.
(~€ 5265/USD 6060)
Ex auction Bank Leu 22, Zurich, May 1979, lot 453.