John VIII Palaeologus (Regent, 1421/5-1448) AR eighth-stavraton or 1/16 hyperpyron (Silver, 0.51g, 15mm) Constantinople.
Obv: Bust of Christ facing, wearing nimbus cruciger, pallium and colobium, right hand raised in benediction, book of Gospels in left hand; IC-XC across inner fields
Rev: + I/W-A/N, bust of John VII facing, wearing maniakon; and crown with pendilia.
Ref: Sear 2566.