This is a pair of late mid 1950s Binomag eye magnifiers. These were made for jewelers, watch makers/repairers, and other trades with small parts with high precision. They are made out of bakelight (an early for of plastic). The lenses are 2.5X magnification, no scratches or chips. They have the original headband, which is adjustable. As well as the original case. It is a little beat up, the paper leather is cracked and missing in some places, but good overall.