When we last saw the Marmon V-12 HCM, it was headed to RM’s Meadow Brook auction in 2007, and RM had a decent writeup of the story of the prototype. Now we see that Frank Robinson Jr. wrote the HCM’s complete history in SIA #52, August 1979, and where RM focused more on the HCM’s tale of failed attempts to market it in Detroit, Robinson focused more on the car’s development and pioneering engineering.
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