Archaeologists of the Institute for the History of Material Culture of the Russian Academy of Sciences found a metal monolith with pieces of glass during excavations in Nyen. Nien is an old Swedish city, which was founded in the early 1600s, long before the appearance of St. Petersburg.
The glass parts turned out to be the remnants of a stained -glass window made according to classical technology: small glasses are connected by lead stripes. Restorers cleaned the stained glass window and restored the metal using the electrochemical method. Then they gently straightened and returned the stained glass initial appearance.
The preserved fragments were fixed on a transparent basis so that the whole stained glass could be shown entirely at the exhibition.
Nien was located on the banks of the Okhta River opposite the Nienshantz fortress. This city was founded by order of the Swedish king Gustav II Adolf at the beginning of the 17th century. Now a unique stained glass window is one of the few surviving city memos.
