Numbers ends in 13-135. Made in China, though they look to be a good quality! The distance between the earpieces, at the hinges - is 5 1/4".
Duk Kwong Optical Co., Vintage Aviator Style Sunglasses With Vintage Case
Vintage Ray-Ban case and a pair of Vintage AVIATOR sunglasses (no brand*)
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VINTAGE AVIATOR SUNGLASSES UNMARKED
Racer Small Vintage Aviator with Keyhole Bridge Black - Hopkins
Vintage Aviator Sunglasses Silver Tone Frames Pilot Glasses Retro MCM Taiwan