Salvatore Ferragamo Eyeglasses. Series number: SF2834. Color code: 057. Shape: Aviator. Lens Width: 53 mm. Lens Bridge: 19 mm. Arm Length: 145 mm. Frame Material: Plastic. Frame Color: Grey. Lenses Type: Demo. UPC/EAN code: 886895375146. Salvatore Ferragamo Demo Aviator Ladies Eyeglasses SF2834 057 53.