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Old 06-19-2020, 10:09 AM
  #5  
WIChix
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Join Date: Jan 2015
Location: Wisconsin
Posts: 472
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Yes, a Singer 201 uses class 66 bobbins. They seem to prefer metal over plastic. Do you have a manual?

Scroll down the page for the link to the 201 manual.
​http://ismacs.net/singer_sewing_machine_company/manuals/singer-sewing-machine-manuals.html
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