Vintage Alcyon bicycle.
One of the oldest famous French brands.
Also the name of a team from the '10ies until the 50'ies.
Won three Tour de France in the '20ies.

Vintage Merrien.R Bicycle 1950s

Saver from Chalon-sur-Saône.
Many features of Wonder Cycles in St.-Etienne.
Presumably Saver gave his own touch to the Wonder Cycles,
a common practice of all times ... 
Project: lining, other rims and tires, adjusting the gear mechanisme

Vintage Bicycles, DE GROOTE LEEUW, Zottegem 
Complete bicycle catalog and prices from 1912 
Large-scale bicycles and accessories 
Belgian monopoly on the SWIFT brand 

Modern construction, nickel plating, and painting workshops 
Thanks to: Wiel Van Den Broek

PEK Belgian race bike from Couillet (Charleroi)
presumably mid/late '40ies 

Vintage Kessels Main D'or from the 70's
High-end bike, Dura-Ace group

Vintage De Rosa versus Kessels bicycle.
Period 1977 - 1978, Fiat en C&A

 Vintage Merckx De Rosa Fiat Tour de France 1977.
The current owner, who bought the bike directly from Eddy Merckx in the late '70ies, recieved confirmation from Mr Eddy Merckx about the 
authenticity of the frame. Contact with Mr De Rosa learned that this bike
can be dated in 1977. All sizes and dimensions were measured by Mr. Ludwig Wynants who certified another Merckx bike in de Koers! museum.They proved to match perfectly with the certified bicycles of Eddy Merckx.