Thread: What is this at back of machine?
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Old 09-07-2014, 07:48 PM
  #3  
Cari-in-Oly
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Join Date: Aug 2014
Location: Victorian Sweatshop Forum
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Is the machine an AZ5, Universal or Keystone? I've seen that only one other time, back in February on the vintage Japanese Yahoo group. It's some sort of adjustment, not a cam but I don't know if it was ever figured out.

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