1830 c.a, Biedermeier period. Rare Bohemian spa mug

Rare Bohemian spa mug from the Biedermeier period, in transparent crystal, ground and tinted pink by fusion, with intense brilliance (a type called Weinglas - rozalinové sklo). Northern Bohemia, city of Neuwelt - Steinschonau, now Novy Svét, Sudeten range. 1830, probably the workshop of Friedrich Egermann. Height 12.5 cm, width 7 cm. Finely wheel-ground on all sides, depicting the main thermal springs of Karlsbad, now Karlovivary, a well-known spa town in Bohemia. The mug is signed: Karl Liebr in Karlsbad. Literature: Passauer Glasmuseum - Bohmische Glas, pages 84-85-86-87. Olga Drahotova - Ceské sklo.