Solo Antiques has dated this piece to the 1920s.
The feet of the glass are decorated with black enamel. Unsigned. All 4 are in excellent original condition with a little light wear to the enamel. Attributed to Adolf Beckert

History
Adolf Beckert – 1884-1929 Born in Bohemia (Ceská Lípa) in 1884, Beckert studied at the glass school in Haida (Nový Bor) at the beginning of the century before joining the Debschitz School in Munich from 1904-1905 and subsequently, from 1905-1907, the Prague School of Applied Arts in Prague, where he failed to graduate.He worked at the Loetz factory from 1908, and in 1909 was appointed its first and only artistic director. After leaving Loetz, Beckert worked briefly at the Dresden glass house Muegeln before joining the faculty at the Steinschoenau (Kamenický Šenov) glass school where he was promoted to director in 1918. He lost his position as director when the Steinschoenau glass school fused with that of Haida in 1926, and died of lung disease shortly afterwards in 1929, aged just 45. While Loetz collectors know Beckert best for his engraved and acid-etched work, often with applications, the bulk of his oeuvre was the enamelled gold and black ('schwarzlot') glass that he produced while in Steinschoenau
Solo Antiques has dated this piece to the 1920s.
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