Vintage Colner from 1975
Cicli Colner (COLNago ERnesto) was launched in the early 1970s from an idea presented by Colnago dealer Velosport in Bologna.
More information about Colner and Velosport

Frameset has a lot of Oscar Egg (*1890 +1926, pro 1912 - 1926, framebuilder in Paris) features. 
Serial number 03 B309 under BB (also marked 4C in diamond shape - indicating that the bike was made for VBF in St.-Etienne France, 69 or 96 and 170). Assembled with Stronglight BB nr.34 and Stronglight headset P3.

Vintage Aquillla frame 1977.
House brand of Jan Harings (ex-pro) from Nuth Netherlands.
The frames Columbus SL were made in Italy (Cicli Simoncini Firenze), were painted in Belgium (Bogardi) and assembled in the Netherlands (Jan Harings).
Those were the days ...

Gaston Orlans race frame, Nervex lugs

 Vintage Gazelle AA frameset 1976

Vintage Plum Vainqueur frameset.
Are the Torpado drop-outs an indication for the later collaboration
with Torpado for the Paganini's ?

Vintage Struyven frameset.
Constant Struyven (1905 - 1989) was a professional 1929 - 1938.
Teams e.g. Génial Lucifer - Hutchinson, Delangle - Wolber, Origan, Van Hauwaert, ...
 

Wolhauser racing bike (Lyon)
With many thanks to Corwim (www.dedriemeren.nl)

Zeus criterium frameset

Peugeot PX10 frameset
Most likely 1976