The AV-1 is very similar to the 1976 AE-1, but offers aperture-priority autoexposure instead of the shutter-priority AE-1.
The camera cannot be fully manually exposed.
The AV in the name refers to the auto exposure type; Av (Aperture Value) is a common abbreviation for aperture priority.
Shutter and light meter have been tested and work (4LR44 battery is required)
The serial number of the camera is 219052