Salvatore Ferragamo Sunglasses. Series number: SF1073S. Color code: 240. Shape: Butterfly. Lens Width: 54 mm. Lens Bridge: 17 mm. 100% UV protection. Frame Material: Plastic. Frame Color: Tortoise. Lenses Type: Grey Gradient. Rim Style: Full-Rim. UPC/EAN code: 886895558921. Salvatore Ferragamo Grey Gradient Butterfly Ladies Sunglasses SF1073S 240 54.