Galmozzi as a shop, was set up in the 1920's when Galmozzi senior left Gloria as he felt that Focesi (the owner of Gloria) was not sufficiently interested in racing. He therefore set up his own shop and later taught his son to also build. Galmozzi junior retired in the late 70's, so your rims are most definitely original. Galmozzi built their own top of the line models, but also marketed some low end bikes sourced from other makers (the same as Colnago, Pinarello, De Rosa...).