This lens with its specific UV Topcor mount was introduced on the market in 1963. It is part of a series lenses which could be mounted on the Topcon Wink Mirror S (aka Prost reflex), the Topcon UNI ( aka Besselar auto 100 aka Hanimex auto 100, the Topcon Unirex, and Unirex EE, and the Topcon IC one and IC one auto.
UV Topcor 35mm 1:3,5 lens
Quality: used lens in excellent condition.
Condition exterior: Used lens in very good condition.
Condition mechanically: works in smooth order.
Glass condition: Clear, no signs of scratches, dust or fungus