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Unread 03-11-2011, 10:33 PM   #6
FNorm
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AH! Ok, I saw it just as your answer came in....LOL Pg. 15. R series was about the last 3/4 of 1928. So, 10,000 to a block and assuming a steady, constant production rate, you can pin the month down a little closer by your serial number

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Last edited by FNorm; 03-11-2011 at 10:33 PM. Reason: sp
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