These are the straps I was think of - Alfredo Binda, "Binda Extra". Note the three layers of the laminate.
Binda Extra toe straps 1970's
Italy
Named after Alfredo Binda, the legendary winner of five Tours of Italy, including 41 stage wins and three World road championship titles. Binda Extra laminated leather straps were the gold standard of toe straps. Made exclusively for
Cinelli by Bianchi Dino.