Watch List notes:

BITHYNIA, Calchedon. Tranquillina. Augusta, AD 241-244. Æ (25.5mm, 6.35 g, 6h). Draped bust right, wearing stephane / Apollo, holding cithara, reclining right on swan left. Corsten 42; RG 115. Fine, green and red patina, light smoothing, area of pitting on obverse. Rare. Lot includes 19th century collector ticket.