Pegasi Numismatics, Auction 25, Los 717 BYZANTINE EMPIRE. Manuel I, 1143-1180 AD. Billon Aspron Trachy (3.52 gm) of Constantinople, Type A(c). Christ enthroned / The Virgin Mary blessing Manuel. S.1966. Dochev.p.205.Tbl.IV.A(c). VF+, brown patina, superb rev. detail. First coinage - heavy standard with highest silver content. [Est. $150]