Old 07-26-2015, 11:16 AM
  #11  
MaryTG
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Join Date: Feb 2015
Location: Portland OR
Posts: 91
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"Another site with "two letter prefixes" said 1934. Do you know which date would be correct?"

i am guessing it is the latter date as the foot is a side clamping foot and the change from rear clamping on the 66 was made in 1923
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