Found this old eyeglass ad from Bloomingdales. I would guess late 1800’s or early 1900’s. Eyeglasses and Spectacles for 50¢.’We’re most careful in selecting and adjusting the lenses in these eyeglasses and spectacles, thus assuring perfect satisfaction to the wearers. Every pair is fitted with the finest pure white crystal lenses. The eyeglasses have nickel silver or gold alloy nose pieces, fitted with patent cork nose rests and clips. The spectacles have nickel silver nose pieces. The same eyeglasses and spectacles are sold by the exclusive optician as high as $1.50- to-morrow per pair.