Colosall tells me that”The Metropolitan Museum of Art has released a vast archive of 400,000 (mostly) hi-resolution digital images online that you can download and use for non-commercial purposes. From a 12-megapixel scan of Rembrandt’s 1660 self-portrait to over 18,000 photos spanning almost two centuries.”
And of course I searched for “bicycles.”
Here’s a few images:
Bicycling, from the Games and Sports series (N165) for Old Judge Cigarettes