Watch List notes:

CONSTANTINE VII PORPHYROGENITUS, with Romanus I and Christopher, (913-959), gold nomismata, (4.44 g), Constantinople mint, struck AD 924-931, obv. IhS XPS REX REGNANTIUM* around, Christ Pantokrator enthroned facing, rev. half-length crowned facing busts of Romanus, wearing loros, and Christopher, wearing chlamys, holding long patriarchal cross between them, around ROMAN ET XPISTOFO AVGG B, (S.1745, DOC 7.6, F?eg 7). Very fine, scarce.

Ex CNG Electronic Auction Sale 238, August 11, 2010 (Lot 644) with their ticket.