Greetings! I have this pair that I bought in the late 90's/early 2000's, that I can't recall the model name. I don't see anything molded into the frame that gives me any clues. One of the ear socks has "Made In USA" molded, but the other one is blank. I've been thinking of trying to track down lenses & ear socks for them, but obviously I'd need to know what they are first. I'd really appreciate some help from the pros. I can take additional pics if needed. Thanks Forum Members!