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[Grant Bowker]

This is not/not a certainty but they have some resemblance to 1939-1940 Chevrolet in the grille shape. The single rear tyre with large hub assembly resembles heavy duty 1.5 ton axles seen on Fords (but the grille/hood and cab aren't Ford) of the period that were sold to operators that wanted a single, high pressure tyre instead of duals. All corrections to this possible ID are gladly accepted.