The 28/8 Tessar was introduced in 1933, and was of a fairly simple design. As it had a small maximum aperture, depth of field made critical focusing unnecessary, and it was not rangefinder coupled. In fact, using the camera focusing wheel could damage the camera. First introduced in black and nickel finish, it became available in chrome with the introduction of the Contax II and III.
The lens was discontinued in 1940. It is reasonably common today.