Taken from https://en.wikipedia.org/wiki/Olympus_XA:
It was designed by Yoshihisa Maitani who had joined Olympus Optical Co Ltd in 1956. He was the chief camera designer and managing director of Olympus Optical Co Ltd., having developed a number of legendary cameras during his career. These included the Pen series, the OM series, the XA series, the IS series and the [mju:] series of cameras.
The original model, the XA, was sold from 1979 to 1985. The original XA features true rangefinder focusing, a fast 35mm f/2.8 lens, and aperture priority metering. The lens was protected by a sliding dust cover. Film wind is by thumb-wheel, aperture is set on the body using a small lever, focus is set by a small lever below the lens, film speed (ISO) is set on a dial below the lens, the viewfinder is optical direct-view with the rangefinder frame embedded in it and a display of the shutter speed at the side.
Includes the original wriststrap, new door seal, new 2xKA76 battery. It will be shipped via USPS Priority Mail which includes insurance, takes 2-3 business days & includes tracking