The vintage Aristoc Mistique Thigh Highs are luxurious and elegant stockings made of ultra-sheer nylon Allure (sheer nude) color. Still in original packaging. They come with 1 pair of thigh highs plus a spare to keep in your purse just in case. Designed with a sheer toe and a seamed construction, these thigh-high stockings exude old-fashioned charm and sultry sophistication. Perfect for adding a touch of classy and aristocratic flair to any outfit, these stockings are a timeless and versatile addition to any woman's wardrobe. Made in the United Kingdom by the reputable brand Aristoc, these thigh highs are sure to elevate any ensemble with their classic design and high-quality material.

From what I can find, based on packaging these are from the 1950s or 1960s.