NEW William Morris London LM50017 C1 Purple/Tortoise 52-16-140 Eyeglasses Frames. These are new with tags eyeglass frames that can be used for prescription (Rx) lenses.
The measurement 52-16-140 is a millimeter measurement of size
52mm is the width of the lens
16mm is the width of the nose bridge
140mm is the length from hinge to temple