Gaston Rivierre, French, 1862 - 1942
Gaston Rivierre is particularly notable for being an early enthusiast for 'vet' racing - and may even have been a prime mover in its invention. If so, he has a lot to answer for.
This card shows Gaston riding a Le Chemineau bicycle fitted with a Le Chemineau 3 speed derailleur. Gaston also patented a number of derailleur designs of his own, including a very early design for a parallelogram derailleur