High-quality mug with cobalt blue interior and tin enamel overlay, post

Beaker made of colorless glass with cobalt blue interior and tin enamel overlay, round stand with polished base and sliding marks, double constricted wall in the lower part, slightly curved wall above, hatched arched fields under the offset and polished lip edge, wall with cut-through ornamentation bordered in gold, the overlaid fields with polychrome enamel painting. Cup is in intact condition, gold painting slightly rubbed in places. Haida around 1910, probably Alexander Pfohl Senior glass refinery. Height: approx. 14.7 cm.