Leitz Summaron 2.8/35 is a small, high quality build lens. My version is from 1967, Leitz made it with the new rare earth glass.
Kyocera introduced a series of highly successful T-series compact 35mm film cameras, offering Zeiss-designed lenses which appealed to photographers desiring high quality optics in a compact form.
Manual settings for ISO values, apertures and shutter speeds. The essentials - what else to ask for?