The 310 Utility was offered with 600x16 4ply fronts and a choice of 10x24 4ply Industrial rear tires, 11x24 4ply Ag. tires, or 13x24 6ply Ag. tires. This is a copy of the price revision which superceded the Jan. 1, 1956 price list. The 310 went up a wooping $48 bucks on the 29th of Oct. that year. These prices are dealer net, FOB Rock Island Works in Ill.