This is a very lightly used OEM Delco Electronics AM/FM/Cassette stereo radio, model (and service part) number 16194451. This model was originally installed in several GM cars from 1995 through 1999, including the Chevrolet Impala SS (option code UL0), Camaro, and Lumina. Please check your sources for cross-reference information.
The radio is in excellent, undamaged condition. All of the knobs and switches are present and in good condition. The TheftLock system is disabled. I installed and tested the radio in my own Impala SS to confirm that the tuner and cassette functions are working properly.