I have looked a quite a few pics of Ideors and have yet to find any with that seat tube lug however there are plenty of pics of Galmozzis and "Gamba" Galmozzis with the exact same design. I have also found the head tube lugs to be different on the Ideors having more shape at the lug where it attaches to the top and down tube.

If you compare the lug on my frame with a typical head tube lug from a Galmozzi you can see they are the same except a notch has been removed at the top and bottom to create the point.

While it may not be a Galmozzi it seems to have more similarities to Galmozzi than Ideor. At least from what I have seen.

Mine has the same solid BB and fork as this Galmozzi...
galmozzi 58cms | Retrospective Cycles