Colorless, red and white glass; cast, polished; lampwork stopper. Diamond shape cross-section; two parts. (a) Base. Upper part with irregular surface and alternating layers of red and white, five of each, surmounting colorless glass with numerous bubbles and cords; hollow cavity with irregular interior penetrates into colorless glass; flat base with beveled edges; signed on base "COLIN REID 4-81"; (b) Top. Colorless glass with some bubbles and cords; irregular bottom surface shaped to mate with top of (a); flat top with beveled edges. (c) Stopper. Conical form surmounted by six-sided form; most surfaces frosted.