some information
http://www.bikeforums.net/archive/in.../t-310578.html
a little more
http://www.bikeforums.net/archive/in.../t-739309.html
quote from that thread:
this is from Sheldon Brown
Celo Europa
A house brand of Marcel Celborn, these are probably either Colnagos or built by a builder that builds some of the Colnago models. The examples we have seen are very tidy - certainly at least as good as a typical Colnago (
http://www.sheldonbrown.com/vrbn-a-f.html#colnago) or Olmo (
http://www.sheldonbrown.com/vrbn-o-z.html#olmo). For a guideline condition (
http://www.sheldonbrown.com/vrbn-a-f.html#guideline) road bike figure about$700.
http://www.sheldonbrown.com/vrbn-a-f.html#celo