1/16 INTERNATIONAL HARVESTER HYDRO 70 – PRESTIGE COLLECTION. Cluding the Farmall 100, F-20, M, 560, 806 and. Produced from 1973 to 1976, the Hydro 70 replaced the Hydro version of the IH 666 tractor. This replica features a wide front axle and ROPS with canopy. These toys are part of our store inventory, and can sell at any time. We try our hardest to ensure that our inventory is up to date, but we occasionally have items that are not updated soon enough. Please be sure that a physical add. Our business is not open on Saturday and Sunday.