Shot of the headtube is not necessary... and my camera is flat
No points there... in more than one way
I don't think it's a Zeus, the fork crown is, maybe the lugs.... but if it were a Zeus, it would be more logical if it had Zeus dropouts too (they're Campy).

I don't worry too much about the BB, because I think that underneath that sloppy paintjob is a well put together bike, although it's not a Colnago.

I've checked the Headtube for ridges or markings by the way.... I now know it's not Columbus.
Anyone know how to figure out what tubing is used? (weighing or something).

@unworthy..... the Ericophon was bought about 10 yrs ago for about 5 dutch guilders, then about 10 bucks.... but I've checked ebay.... might sell it.... they've skyrocketed thnx for the tip.
And I'll keep the White Rolls myself, I have the same one on my Singlespeed Rockhopper MTB.... Love it.
And pssst.... don't tell anyone... but I'm gonna be a posenger.... probably gonna convert my Mystery bike to a Coastie-Singlespeed, and keep the parts for a future real classic-bike restoration, because there's no way to determin how to build this one up to original splendor.
Or if the paint is damaged enough I'm gonna strip (maybe find decals) and rebuild it then.
(or am I gonna get banned for saying that on this forum)