Looking through Le Cycle, I found a few surprises (for me - I am sure not for many on the list):
- Velox bar-end plugs (the rubbery kind) were introduced only in late 1971/early 1972.
- Mafac Competition and 2000 brakes retained the engraved/stamped lettering at least through 1973.
- Zefal HP pumps (similar to the current HPX) were introduced as early as 1972 or 1973.
Just for those wondering what to put on their bikes.