Vintage best 70s Sunglass Covers

BRAND / ITEM NAME: Vintage Sunglass Covers (to attach over own prescription glasses)
COLOR: tint is an olive green/yellow gold framing
CONDITION: EUC; appears no scratching
MATERIAL: Glass, Metal (probably Brass)
MEASUREMENTS: these are adjustable; I'll give the measurements as they lie still: Length just under 4.5”, Height 1.5”
fits over most of my prescription glasses; shown over a pair of my own that I could adjust/bend for a better fit.

Feel free to ask any questions-these are very best very cool.