1971 International Harvester Hydro Series 544, 656, 826 and 1026 Tractors #1174

This original 10 x 13" magazine ad from 1971 features the New International Harvester Hydro Series of Tractors.  Shown are Model 544 - 55 pto hp, Model 656 - 66 pto hp, Model 826 - 84pto hp and Model 1026 112 pto hp.