Gazelle of the Netherlands has been in business since 1892. Mostly they will be known for their typical town bikes called "Hollandrad" also. On other hands they build high quality lightweights also.
The Champion Mondial is known to be one of the most famous european pro road frames of the 70's and 80's and was hand built with nice lugwork, constructed with Reynolds 531 tubing only and get some changes in design over its 30 year of production, resulting in five different models.
First there was the A-Frame with fender eyletts and a longer wheelbase, second the AA-Frame with a shorter wheelbase, chrome on Chainstays and fork and an upgraded Bottom Bracket shell, third the 80s AA-Special with Reynolds 531 SL tubing and internal cable routing, forth the AA-Super with again a shorter wheelbase, indented seat tube and wishbone seat stays and at last the AB-Frame with a tighter geometry than A-Frames but no fender eyletts and without chrome.
Recently I came accross this light green metallic Gazelle Champion Mondial AB-Frame dating back to may be 1979. It came with a Stronglight A9 Aluminium headset and Campagnolo Super Record Bottom Bracket. Obviously this frame was asking for a Campagnolo setup.
Bottom Braket: Campagnolo Super Record
Headset: Stronglight A9 Aluminium
Crankset: Campagnolo Super Record
Front Derailleur: Campagnolo Nuovo Gran Sport
Rear Derailleur: Campagnolo Nuovo Gran Sport
Shift levers: Campagnolo Nuovo Gran Sport
Brake Lever: Tektro Inverse Levers
Brakes: Campagnolo Nuovo Gran Sport
Wheelset: Campagnolo Nuovo Gran Sport with Mavic tubular rims or Normandy Luxe Competition with Mavic tubular rims
Saddle: Lepper Voyager with Reynolds 531 frameSeatpost: Selle San Remo Aero
Stem: Sakae
Handlebar: Sakae Road Champion cut to time trial/ bull horn
Pedals: 2 Danger
Frame tubing: Reynolds 531
Fork tubing: Reynolds 531
