I found an original photo of Gaul from the 1958 TdF that I think is from the same stage as the one referenced in Aldo's earlier post. (Note the placement of the toe clip and strap on Gaul's right foot. If you compare my photo with Aldo's, it appears the toe clip placement and strap is identical between the two images.)
I have enlarged the area around the cranks so the web page is a two photo set-up. It can be viewed at:
http://www.thehortoncollection.com/
Brett Horton San Francisco, CA
.