Photograph dated Mar. 22, 1944. Original caption reads: "Burlington Street Department, Burlington, Vermont This view shows one of our sidewalk plowing and sanding units consisting of a rubber tired Allis-Chalmers IB Tractor with Baker V-Type 5 ft. width plow and a trailer sand spreader designed and built in the street Department repair shop. Note the extra metal weights placed on the rear wheel hubs to give added traction. The V-type plow has been found from experience to be more satisfactory than the reversible blade plows, especially after heavy drifting storms. The sand spreader holds approximately 1/2 cubic yard of sand. It has sloping false bottom lined with sheet metal which assists the flow of sand to the rotor which is placed just to the rear of the main axle. The surface of this rotor is covered with beads of steel which operates against a steel fibre brush to deliver a carpet of sand 30 inches in width over the surface of the icy sidewalks. The power for revolving the rotor is obtained from the small wheelbarrow rubber tired wheel which make a contact on the surface of one of the trailer wheels and is transmitted to the rotor by V-belt. The pressure of this third wheel against the surface of the trailer wheel can be increased or diminished or thrown out of contact entirely by changing the position of a small lever mounted on the side of the trailer which is easily accessible to the driver."