Age and attribution to the best of my ability. I think these are from the fifties or maybe sixties. They have for some time apparently been stored folded as you see them. They could be made to stay open but you should do it a little at a time and let it sit. Clear thin plastic lenses and artificial fur edged. I don't know exactly who would have worn these, perhaps more than one kind of unit would find them ideal. Straps are fabric with elastic ends, the elastic is nice and stretchy, the clips are corroding some. Not the most common item, they don't look like they stand up to handling but so much, they were made to be as lightweight as possible.