What is Rivet spectacles?
[[Image:Scissors glasses.jpg|thumb|right|[[First French Empire]] rivet spectacles c.&nbsp;1805]] '''Rivet spectacles''' were the earliest known style of [[eyeglasses]], dating back to the [[medieval]] period. They consist of two [[magnifying glass]] type objects attached at the handles to one another with [[rivet]]s. [[Category:Eyeglasses]]