Gerda Stromberg vase B 150 with butterflies - Strombergshyttan mid 1930s.

Another vase by Gerda Stromberg, model number B 150. Height 180mm, about 7". Design from mid 1930s (maybe about 1936-37?) according to the model number. 1939 catalog ends at B 226 and 1942 catalog ends at B 401. An undated catalog, I think is from ca 1935, ends at B111.

This vase has two butterflies as cut/grind decor. Not engraved but shining blank polished. Engravings is marked C and a number, they are not blank. Cut dekor has F and a number, they are blank polished. Both are of course made with fixed cutting/grinding wheel, but when you say cut/grind, they are blank polished and mostly made with larger wheels. In the catalog from 1939 there are only two decors with butterflies, and they are F-numbers 44 and 46. I think it might be those on this vase.