doing a search for something else I came across this article. I should probably write to them about my marked piece.
and if you click on the link there is the most giant pair of mercury glass or double walled silver glass items the museum acquired.
In total the museum only have 80 pieces.
'The museum displays the most luxurious vases
Sušice, Kašperské Hory - The Šumava Museum currently owns one of the largest collections of silver glass in the world.
Source:
https://klatovsky.denik.cz/zpravy_region/muzeum-vystavuje-nejluxusnejsi-vazy20120121.html?reakce=nova'
https://g.denik.cz/21/5f/susice_210112_denik-630.jpghttps://klatovsky.denik.cz/zpravy_region/muzeum-vystavuje-nejluxusnejsi-vazy20120121.html?reakce=novaArticle translates as:
'A few years ago, this collection was able to significantly enrich the vase pair, which is one of the most preserved silvered glass items in Europe.
"In the collection we have small and big cups, bowls, vases, candlesticks, statuettes. Last year, thanks to the financial help of the so-called Norwegian funds, we managed to rebuild a collection of nearly 80 objects from silver glass, "said the director of the Šumava Sušice Museum, which has branches in Kašperské Hory and Železná Ruda, Zdeňka Řezníčková.
Source:
https://klatovsky.denik.cz/zpravy_region/muzeum-vystavuje-nejluxusnejsi-vyzy20120121.html?reakce=novaStained glass was first made in the 1940s
(sic - I think this should read translated as 1840s) and patented in England in 1849.
Its production moved to Bohemia around 1860 and the glass was started in the local glassworks. For many years, glass masters have been trying to produce silver glass using tin, lead, bismuth, mercury and other mixtures. Initially, a mercury solution was used, based on the techniques used to mirror mirrors. "Every glassworks later had their own secret and highly guarded recipe for making silver. At the end of the 19th century, customer interest in silver-plated glass began to decline, and its features began to reappear in the field of technical glass. It was first used in chemical laboratories, but soon appeared a new product for a wide-ranging daily use, thermos. Another use has found this glass in the manufacture of spotlights. After World War II, the production of silk-glass objects was practically finished, except for thermos, "said Řezníčková.
You can visit the largest exhibition of silvered glass products in the Kašperské Hory Museum. "One of the glassworks that used to deal with silver glass was the glassworks in Anin. There they produced various interesting things like giant altars and candlesticks. Previously, either luxury or decorative items and ordinary human needs such as cups, vases, figurines, crosses, and so on, I myself remember that I was seeing glassware in chapels in my childhood, "Vladimír Horpeniak, historian of the Šumava Museum in Kašperské Hory, told the Journal.
Previously, silver-plated glass was a common thing, but after the decline of its production, it became popular in antique shops, and its price also grew. "We owe a great deal of memorial to the collection that we have here, mainly to Emanuel Boušek, who was the director of the local museum in 1945 and 1970 and who gathered a lot. The present product of silver glass was also accompanied by the writer Jitka Lněničková, "said Horpeniak.
In the early 1970s, silver-plated glass was the source of a new generation of artists for its artistic expression. And so it looks like silver glass has a new future ahead. With the silver layer on the glass we will meet today at the garden balls and the exceptional art works of glass artists. Most often we meet him at Christmas decorations.
Author: Daniela Loudová'