Marcian AE4. Constantinople. AD 450-457. Monogram type 5b Sold by barryanddarling on vcoins for $91.00, Sept. 2007. Marcian (450 - 457 AD) AE4 (10mm, 1.72 g). DN MARCIANVS PF AVG, Pearl diademed, draped, cuirassed bust right. Monogram RIC 5b within wreath. Mintmark CON, off flan.