"Heritage Auctions, Inc., 2013 January Ancient & World Coin Signature Auction, Lot 21426 Valens (AD 364-378). PB (lead) Forger's Mold. Set of two pieces consists of two pieces, a larger "reverse" mold approx. 57mm square with an overlapping lip, and a smaller "obverse" piece 50 X 54 mm designed to nest within, both sides containing impression of a siliqua of Valens of the Trier (?) mint of type RIC 27 - RSC 109."