This is a later and high quality model in the Canon Sure Shot series of point-and-shoot 35mm cameras. The Sure Shot 85 Zoom was called the Prima Zoom 85 in Europe and the Autoboy Luna 85 in Japan.
Here's the description from the Canon Museum:
"A compact 35mm camera equipped with 38-85mm 2.2x zoom lens which includes an aspherical lens element to deliver high contrast and sharp images throughout the entire zoom range. An advanced 3-point AiAF autofocus system also ensures outstanding results, even when the main subject is not located in the center of the frame. Other features include an RT (Real Time) release mode, which enables users to capture the decisive moment in any shooting situation, as well as standard and panorama (Japanese model only, with date imprint) picture formats while shooting on the same roll of film. A Mode Dial located on the top of the camera puts all of the operation functions, including the OFF switch and six different shooting modes, at the user’s fingertips. The camera has a stylish thin, flat-body design."
This is the version of the Sure Shot 85 Zoom with the optional date imprinting feature (the calendar only goes up to 2019 but if there is an hour/day/minute mode which may still useful). If you don't wish to use this feature just press the mode button until you see "- - -" (the camera will remember your preference).
This camera requires a CR123 battery (available as an option).
Condition notes All camera features were tested with a battery and film installed (the film was not developed) and in addition the film plane focus was verified on an autocollimator. The camera is also in very good cosmetic condition (see photos).