These classic round eyeglasses are in very good condition. They have the spring steel curl temple AKA riding bow wrap around style. There are no markings to indicate maker or other information. In 1880 spectacle makers took advantage of newly invented spring steel. They made temples that curved around the ear and held eyeglasses in place while riding a horse or running. The riding temple spectacles was very popular from 1880 to the early 1920s. From side to side they measure 4 3/16" with a 1 5/8" diameter lens. The temples are 3 3/4" to where they begin to curve. The pattern on the silver colored frames is that of a saw tooth. The accompanying case might not be original to the glasses and as you can see from the picture, is not in perfect condition.