Each of these is 2" in diameter with a steel case that has bar pin on reverse and name of maker W&H. Front of each has celluloid window over real photo of the employee with his employee number. Five of the six include the word "Transportation" below the serial number and the sixth has the designation "Mechanical." As these were used on a daily work day basis they show some age and wear but no really serious defects except the last item in the first row has some tanning on the photographic background. c.1930s and each is unique. See following related group.