Rivet Spectacles - This early type of spectacle incorporated two circular lenses related by a rivet which was opened to allow them to sit down atop the nose. Thread Loop (Threaded) Spectacles - These Spanish, and later on Asian, spectacles were held onto the encounter working with loops of https://collectables69863.bluxeblog.com/49094361/the-best-side-of-collectable-glasses-frames