Mid-Century Fantasia Deep-Indent Ornaments Lot of Four-Poland Glass-Blown For Sale

Hand-crafted in Poland during the 1930s through the 1950s, these glass-blown ornaments possess age-related paint fading, silvering oxidation, and minor mica loss which is common and often embraced as authentic vintage charm.
The round mercury glass spheres feature a deep, concave central indentation (the reflector) designed to reflect Christmas tree lights. Decorated with textured silicate mineral flakes (mica) that create a frosted, sparkling glitter effect around the indent and on other areas of the balls.