No model number, I got them in ‘85 and managed to preserve them by just using for driving.
If I can find out anything I’ll let you know. I’ve spotted at least three fires in the early stage with them.
Sweet.......
http://www.ulugtekin.com/pen/Ulugtekin%20Luxury/Vintage/Ray_Ban_Aviator_Diamond_Hard_Sunglasses/Ray_Ban_Aviator_Diamond_Hard_Sunglasses.htm
Stay safe !