Nez - optical device designed for vision correction, in fact - the glasses without handles. First came up with the pince-nez in the XVI century, but the greatest popularity it received in the late XIX - early XX century.
Pince-nez on his nose was recorded with the help of the arch springs that connected the left and right side of the rim. For spring used metal, so it was important to avoid premature loss of its elasticity. To this end, pince-nez made foldable, while spring is unloaded and lasts longer.
To pince-nez a little difficult, but at the same time firmly seated in the bow, were attached to it special nose pads attached to the rim on both sides. Was attached to the rim of the small loop to be able to take the device with his hands. Often this ring was attached to a chain or strap to prevent the fall of his glasses on the floor.