Old Soviet plastic sunglasses, with large eyepieces. All instances on transparent elements have small scratches and frayed places (photo 7). But if desired, they can be removed and replaced with glass lenses of any color or with diopters, made to order in an optical workshop. On the arcs there is an old price and a factory sign. Made at an optical factory in the city of Izyum (eastern Ukraine). Distance between eyepiece centers (approx.) 3.3" / 83 mm

Button of electric doorbell for apartments or gates. A new button from a warehouse, in excellent working condition, never used. Diameter 1.7" / 44 mm

The red "Stop" button KU-11M, used in the former USSR to stop the machine-tools, electrical machines and mechanisms. The ring around the button shows its parameters and the year of manufacture - 1971. It designed to operate at a current of 6A, alternating voltage up to 380V or constant voltage up to 220V. When the button is pressed, two of the four contacts work for closing and possibly two other contacts for opening. Size 1.6x1.6x2.1" / 40x40x53 mm Button diameter 0.94" / 24 mm Size 1.6x1.6x2.1" / 40x40x53 mm Button diameter 0.94" / 24 mm