UV Topcor 135mm 1:4 lens sn 13928133 (later version).
This particular 135mm UV topcor lens with its specific UV Topcor mount was introduced on the market in 1968. It is part of a series lenses which could be mounted on the Topcon Wink Mirror S, 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.
Quality: used lens in excellent condition.
Condition exterior: used lens in excellent condition.
Condition mechanically: works in smooth order.
Glass condition: Clear, no signs of scratches, dust or fungus