Protractor for vintage Sears Roebuck Craftsman Jointer #103.20660 Part #18922

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Does anyone have a link where I can get a vintage or used replacement protractor for my 60's model Craftsman jointer? Sears parts is looking for one for me
but I'd prefer one that's been used? Thanks in advance for any leads. Redding, Ca

[EVILDR235]

 I have two Craftsman 4 inch models that i would sell parts off of. I wonder if that part would fit a 6 inch model like yours ?

EvilDr235