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Old 03-06-2014, 05:07 PM
  #4  
Rodney
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Join Date: Oct 2013
Location: Centralia, WA, USA
Posts: 4,890
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The cluster of 3 with the number 31 stamped on the front one look like Greist adapters for their hemmer feet. The adapter goes on the presser bar and the hemmer feet are held on by it.
Rodney
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