English:
Stone-glass beaker Friedrich Egermann, Blottendorf near Haida (finishing), Buqoy'sche Hütte, South Bohemia Südböhmen (glass), circa 1830/35 Teal blue and cut glass with gilding and green-ochre stain. 10.3 cm high blassgrün marmoriert sowie mit Rosetten und Rändern in Poliergoldmalerei verziert. Friedrich Egermann (1777-1864) got on an important glass painter and technologist. He was allowed to join the guild of glass cutters, gilders and painters. He visited important Saxonian china producers in Gera and above all the castle Albrechtsburg in Meissen. Here, the inquisitive young Egermann managed to find out the preparation of inks, the manufacture of brushes and fine china painting methods including the decoration firing despite of their maximal concealment. After coming back home he gradually began to assert himself as a glass painter and technologist. In 1820 he was already so asserted that he got the freedom of the town Haida and built a larger glass decorating shop. An accidental result of the Egermann´s experiments may be the semiprecious glasses. He has got with them a new sort of products with impressively and significantly coloured inhomogenities and with the surface of various colours. In 1824 he founded the right way of production of his most important invention - the red staining. He was honoured and in 1833 awarded with the silver medal, in 1848 with the gold medal of "The Union for the Industry Encouragement in Bohemia".Made in a variety of colours, it was an opaque glass, usually with a highly polished finish, that simulated the look of semi-precious stones. This type of glass was copied by many different factories until about 1855. (www.egermann.cz)

Deutsch:
Lithyalinbecher Friedrich Egermann, Blottendorf bei Haida (Veredelung), Buqoy'sche Hütte, Südböhmen (Glas), um 1830/35 Petrolfarbenes, teils facettiertes Glas. Obere Wandungshälfte mit Kugelschliffdekor und goldenen Zahnkanten dekoriert. Wulstring und unterer Wandungsbereich ockerbraun und blassgrün marmoriert sowie mit Rosetten und Rändern in Poliergoldmalerei verziert. Breiter, abgesetzter und vergoldeter Lippenrand. H. 10,3 cm Petrol-colored, partly faceted glass. Der Begriff ''Steinglas'' weist auf die Absicht hin, (Halb-)Edelsteine nachzuahmen. In dem am 9. März 1829 an Friedrich Egermann erteilten Privileg für die Entwicklung von Lithyalinglas wird unter Bezug auf seinen Antrag festgestellt, dass das bisher als ''Mineralglas'' bezeichnete Glas nun ''wegen den besseren Verkauf Edelsteinglas'' genannt werde. Die meisten Gläser wurden von Hütten der Familie Buquoy und Harrach geführt, Friedrich Egermann selbst betrieb keine eigene Glashütte. Um den Effekt des Lythialins zu erhalten, musste die Wandung durch Beizung und nochmaliges Brennen bearbeitet werden. Aus dem technischen Vorgang machte Egermann ein Geheimnis und behauptete fälschlicherweise, dass die Marmorierungen auf der Oberfläche durch Schliff oder sonstige physikalische Vorgänge entstanden. In Wahrheit wurde Farbbeize aus Metallsalzen flächig auf die Wandung aufgetragen und im Muffelofen eingebrannt. Friedrich Egermann (1777-1864) got on an important glass painter and technologist. He was allowed to join the guild of glass cutters, gilders and painters. He visited important Saxonian china producers in Gera and above all the castle Albrechtsburg in Meissen. Here, the inquisitive young Egermann managed to find out the preparation of inks, the manufacture of brushes and fine china painting methods including the decoration firing despite of their maximal concealment. After coming back home he gradually began to assert himself as a glass painter and technologist. In 1820 he was already so asserted that he got the freedom of the town Haida and built a larger glass decorating shop. An accidental result of the Egermann´s experiments may be the semiprecious glasses. He has got with them a new sort of products with impressively and significantly coloured inhomogenities and with the surface of various colours. In 1824 he founded the right way of production of his most important invention - the red staining. He was honoured and in 1833 awarded with the silver medal, in 1848 with the gold medal of ''The Union for the Industry Encouragement in Bohemia''.Made in a variety of colours, it was an opaque glass, usually with a highly polished finish, that simulated the look of semi-precious stones. This type of glass was copied by many different factories until about 1855. (www.egermann.cz) Vgl.: J. Kräftner (Hrsg.): Glanz und Farbe. Die Glassammlung Christian Kuhn, Abb. 12.78 und 12.61 sowie S. 129.