This is a pair of celluloid glasses by Cho-Beh Kotake. From the popular T-310 series. Purchased at Kaneko Optical and used with care. I have multiple pairs of glasses and rotate between them. I had them cleaned once a year, so I believe the celluloid still has a beautiful luster. These are works by the now-rare, genuine celluloid handcrafted glasses craftsman, Cho-Beh Kotake, a senior figure among celluloid craftsmen who carried on the "no-core method" and the "phantom seven-leaf hinge." Because there is no core inside the side frames of the glasses, they give a very beautiful impression. The number available is limited, making them a rare item. ＜Size＞ ■Lens width: 52mm ■Front width: 136mm ■Front height: 33mm ■Temple length: 147mm The glasses have been polished, so the condition is good, but there are small scratches. Please refrain from purchasing if you are looking for perfection. Prescription lenses are installed, so please have them replaced at Megane Ichiba or similar. Kaneko Optical Yoichi Taihachiro Kinsei Urban Research Lloyd Lois Sabae Hakusan Megane Color...Gray Frame material...Resin/Plastic