Vintage Product Miniature Company International Harvester Mc Cormick Farmall Tractor and Traction Trailer. Product Miniature Company, or known by the acronym PMC, was a company that manufactured pre-assembled plastic promotional models cars, banks and toys in Milwaukee, Wisconsin. It was started by brothers William Edward "Ed" and Paul Ford in 1946. Car model production, the company mainstay, ended about 1965. In 1958 or 1959 the company moved to Pewaukee, west of Milwaukee, and remains there to this day, now producing other plastic promotional products, but not vehicles. International Harvester was a regular client throughout PMC's existence with trucks models produced as late as 1957. Some reproductions of IH's brand of Farmall tractors were also offered as promotionals, some hauling a McCormick-Deering trailer. PMC's early International models were usually molded in bright yellows, oranges, reds, and sky blues and were toy-like, but very attractive.