The Sno-Train was routinely shown at military ceremonies and publicity events. Seen below is Brig. Gen. Chester V. Clifton, Deputy Chief of Information for the Army. His right shoulder is touching the Electric Drive Driver unit, which is a cluster of three gears that provide a gear reduction.
This image came from the Firestone Archives and published by the Firestone News Service. The image was originally published on July 17th, with an undetermined year.