Can you help to identify these frames, bikes or parts?

I'm thinking about purchasing this frameset incl. the front wheel. If you're wondering: in case I buy it, I'll build it up as intended with gears. Seems to be another mystery lo pro, any clues what it might be? No pantos and I haven't seen the frame in person, so all I have are these photos:

• Tubing is columbus Cromor
  
• The geometry with the double slope in both the top tube and the seattube was build by various manufacturers e.g. concorde, daccordi... But the concorde had the shifter bosses aero style on top of the downtube and the daccordi had pantos on all of their frames afaik.
  
• Maybe the lugs give a hint? What strikes me is the following: the top tube seems to be fillet brazed onto the seatpost-lug while all other joints seem to be lugged. You can see this on the last 4th and last photo..
  
  

This would be my first lo pro, so any (expert) input is welcome!
Thanks in advance :)

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