ROMAN SOLID GLASS BICONICAL STOPPER. Ca. AD 200 - 300. A translucent green glass stopper with a biconical shape, tapering symmetrically to rounded points at both ends, used for sealing vessels. Mounted on a custom-made display stand. For similar see: Sir Henry Wellcome's Museum Collection, Object Number: A628500, Bonhams, Antiquities, 4 July 2024, Lot 192. Size: 60mm x 100mm; Weight: 350g Provenance: Prince collection, 1990s-2014; Ex. Private collection 1970s-1990s.