At face value, it sure looks questionable, but I think someone would have to have intimate knowledge of the block stamping operation at the Flint engine assembly back in the day to make any kind of credible commentary. Was it possible to have had different gang stamping equipment, where different stamps could have had different appearing letters and/or numbers? Could the letters/numbers come loose within the gang stamp and still make an impression like in William's picture? Just a couple questions I could think of.
