Classic decanter with a gorgeous, elongated, faceted stopper marked 3 on the base, as is the foot of the decanter which has a long neck, bulbous body, amethyst stem which is also faceted, and part of the pedestal base. The decanter is elegant and probably mouth blown but the base is polished smooth. The amethyst stem is so dark is difficult to photograph. The old spelling of Czecho-Slovakia is used on the base, and is acid etched. I believe this style of mark for the country name was used between 1920 and 1938. The decanter is approx. 15.75" tall.