1/16 International Harvester Hydro 70 Tractor with ROPS Ertl Prestige Collection. This is AGE 14 Plus- NOT a play Toy. Prestige Series Quality and Detail. 1/16 die-cast metal International Harvester Hydro 70 Tractor with ROPS – Ertl Prestige Collection. Produced from 1973 to 1976, the Hydro 70 replaced the Hydro version of the IH 666 tractor. This die-cast replica features a wide front axle, weights and ROPS with canopy. We will gladly make every effort to resolve any unforeseen issues. We do our best to make sure all of our listings are totally accurate and have the best possible photo. We have a large selection of IH, Farmall and Case IH items. CASE IH. SPEC CAST. INTERNATIONAL HARVESTER. SCALE MODELS. TRACTOR MAC. IH. FARMALL. LITTLE BUSTER. And more… Please feel free to browse our store and let us know if we can help you! Check out my other items. The free listing tool.