The light we offer here comes from Scandinavia and has the "Megaphos" stamp for the products sold abroad by the house Sistrah. In the cataolg from 1933 of the Sistrah company, this model is presented with the type n° SSo. The inlaid white colored top and the opal glass rings are made for a very soft, diffuse, glare-free light.
Ref: Sistrah sale catalog of 1933