Essilor 475 unusual modernist rimless sunglasses hand made in France, 80s NoS

Essilor 475 Avant garde designer sunglasses hand made in France in the 80s. incredible design with rimless lenses, Matt black metal mount to which the lenses are screwed to the back, and two circular holes let the metal bar bend and pass through the lenses to connect the temples. I hope I could explain it but the best is looking to the pictures! collectible piece that serves its best as inspiration to design new Avant Garde models piece in mint condition, brand new from a vintage deadstock. overall 140 mm lens width 60 mm height 47 mm temple 125 mm