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These glasses are brown and kind of look like eggs titled at a 37 degree angle.
A) 1976 Model 5261 Porsche Sunglasses
B) 1974 Model 5261 Porsche Sunglasses
C) 1971 Model 5261 Porsche Sunglasses
D) 1977 Model 5261 Porsche Sunglasses
What are 1971 Model 5261 Porsche Sunglasses?