It is a working camera and will shoot right now. It has been scratch tested and passed with flying colors. Serial number 5532. There isn't any professional 35MM motion picture camera in history that had a production run of 5000. The serial numbers are a code for month and year and the production serial number for that year. Unfortunately I don't know the code. Could be the 55th camera made in March 1922 or May 1915 and the 32nd camera.