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    Restored 1984 Mack R Model Walk-Around
    Rod Sutton
    March 27, 2025
    Grayce Emmick, an eighth-generation farmer, restored the 1984 Mack R Model.
    Navistar Corp. image
    Model H tractor pulling a concrete dump body.
    April 24, 2024
    These ready-mix predecessors could carry 1 to 2 cubic yards of concrete.
    Bureau of Public Roads Manuscript Collection, Idaho State Archives
    Knox Yellow road scraper.
    Tom Berry
    March 19, 2024
    Horse-drawn scraper eased some of the manual labor.
    Doug Osborne Papers, HCEA
    Galion Little Master
    Tom Berry
    Feb. 13, 2024
    Cutting edge machines from the early 20th Century.
    HCEA archives
    LeTourneau-Westinghouse C Tournadozer
    Tom Berry
    Oct. 20, 2023
    R.G. LeTourneau solved problems inherent with crawlers by mounting a blade on a wheeled tractor.
    Mixermobile Manufacturers, HCEA Archives
    Mixermobile Twin Truckmobile
    Tom Berry
    Sept. 22, 2023
    Built in the early 1940s, the Twin Truckmobile hit a road speed of 50 mph.