12th December 1947, Page 52
12th December 1947
Page 52

Page 52, 12th December 1947
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Effects Of Speed On Cost
Simple Calculations Show Whether a 20 m.p.h. or • 3o 'm.p.h. Vehicle will be More Profitable on Regular Work Over a 21 0 -mile -Route. _ . T HE other day I had a conversation......