Daniel Rebour was a French technical illustrator who focused especially on fine and custom bicycles of the 1940s and 1950s. If you read Bicycle Quarterly, you've probably seen some of his drawings reproduced there. The web shop Velo-Orange also has some of his drawings on their site as graphic elements.
Rebour had an affinity for randonneuring-style and utility bicycles, and had an eye for detail. The drawings themselves are beautiful, but the bicycles they depict are even more so. They are a source of inspiration for anyone considering building or outfitting a rando, commuter, or utility bike, but they are also a snapshot into the world of fine mid-century vehicular bicycling.