Cazal 951 Sunglasses Design Sketch

On our constant quest for knowledge and history, we came across this picture from out friend Tony Alaniz showcasing the original signed design work for my all time favourite Cazal model, the Vintage Cazal 951 Sunglasses. I had always wondered if the original design included the sports package or if it was a secondary motion. Really incredible design by Cazal, and obviously, way ahead of it's time!