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

Hello, I am new here. Sorry, no experience with forums and generally not much experience with bikes - riding my first road bike (a beautiful Tour de l'Avenir Gazelle in Brussels Blauw ; ) since this spring.
Thinking of building a single-speed I've bought a nice frame recently. Did some research trying to identyfy it , but with no success. There are no decals, no pantographing on it, just the serial number on the BB shell 0017015 8. The bottom brackets are Shimano 36x24T, 70=W=115, date codes on the cups are LL, LJ. I can only guess the frame is from 1988 but still no idea about the maker of it. Any suggestions?
Thanks for help.

It has no significant marks to identify its' maker, but the the long lugs in the head tube with the big triangle opening reminds me of a Romani of 1977-1979 period.
Tubing and lugs are columbus SL and rear wheel spacing must be either 126 or 124.
Great stiff frame. It deserves a beautiful rebuilt and not a single speed conversion, but that's my belief.
Cheers.
http://johndoctor.blogspot.com/ scroll down untill you see the romani.