Early to mid-1970s Bausch & Lomb (B&L) sunglasses Ray-Ban Outdoorsman (Aviator style). Bridge markings: "B&L 1/30 10K GO U.S.A." 10K gold overlay (GO) The top-of-the-line construction at the time, with 1/30 of the total frame weight being a 10K gold layer. The lenses are original G-15 glass with BL sandblasted markings on both the left and right sides. Both-side BL markings are a rare specification seen in the 70s compared to one-side markings. Rope (cable) temples Original shape for pilots at the time. USA-made vintage from the Bausch & Lomb era is highly valued in the overseas market in recent years. 【Condition】 Due to its vintage nature, there are minor scratches and other signs of age, but there is no critical damage that would interfere with wear. The combination of 1/30 10K GO + both-side BL + rope temples is a specification from that time that is not reproduced in current models, and I believe it is a valuable item highly regarded as a collector's piece. Returns and exchanges are not accepted due to the buyer's circumstances. Please check the condition in the photos before purchasing, as this is a used item. If you have any questions, please ask in the comments.