1949 Caterpillar Diesel D2 Tractor - Vintage Ad - Makes a Seedbed N171

This original 8.5 x 11" ad from 1949 showcases the Caterpillar Diesel D2 Tractor plowing a field.  These tractors were on treaded tracks instead of tires.  the ad features Farmer Elmer Groenwoldt of Davenport, IA.