Rare lodge glass / cup with lancet cut, Lauenstein, engraved lion mark

Very rare tumbler / lodge glass made of gray-tinged, thick-walled glass, cylindrical body with solid base and lancet-cut border, below the solid, fused lip edge a circumferential band with cut, partly glazed Masonic symbols, base with dislocated tear-off and engraved lion mark, strong under the UV lamp fluorescent glass mass. Cup is in intact condition. Glashütte Osterwald, Lauenstein, last third of the 18th century. Height: approx. 10.6 cm, top diameter: approx. 8.4 cm. Lit: Lauensteiner Glass 1701 - 1827.