By the late 1800s, this technique was adapted for Christmas ornaments, offering a "poor man's silver" look that was affordable yet stunningly radiant.
Authentic Polish ornaments are still made using traditional mouth-blown techniques in regions like , Krosno , and Józefów . polish-mercury-glass-ornaments
Despite the name, modern mercury glass does not actually contain mercury. The technique, also known as "silvered glass," originated in 19th-century Bohemia and eventually spread to Poland. By the late 1800s, this technique was adapted
The Radiance of Tradition: A Guide to Polish Mercury Glass Ornaments By the late 1800s