This is another one of those quirky connections between companies.
High Speed was known for making contract runs that were sold under other brand names. This model, crude as it is, is early High Speed, as are other models depicted on the cardback.
A promo run for Wendy's restaurants featured some of the same castings pictured, so it is little surprise to see (Simba) Dickie branding on the product package. Simba Dickie we know also has control of Majorette, and Schuco. I mention Schuco because not long after this model was issued, a short series sold as Schuco sometime after were also High Speed castings. This implies Simba Dickie and High Speed had business ties.
Business ties behind the scenes can become quite convoluted, which I hope this model serves to illustrate. Sometimes it is impossible to tell who made a model, if there are no maker marks and the model was sold under some other brand. This is most evident with a maker such as the Universal Group, where the business ties are so convoluted it is nearly impossible to unravel.
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