1231 Eyeglasses by Lindberg. Color: A116-K237-U9, A168-K204-U16, AC81-K87-PU9, AF69-K24M-10, A137-K160-10, AK33-K196-U9, Size: 50-19-135, 55-21-135. If you're striving for a statement look with the unmistakable elegance of minimalistic design, the 1231 frame by LINDBERG has you covered! The eyeglasses feature a classic square shape, an amazing mix of high-grade acetate and titanium, and the patented screwless hinge design, to look both minimalist and ultra-modern.