This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
LeonardoFahrrad. Bicycle model constructed based on an alleged drawing by Leonardo da Vinci or one of his pupils now widely held to be hoax Photo by Erik Mller WARNING the following comment is OR Mandy January UTC The page on which the bicylce drawing is found has drawing which is by Leonardo There are number of other images on