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Palmer’s Computing Telegraph Scale-Very Rare-in some circles thought to be one of the first slide rules. This link shows you information about this piece and what it can sell for in pristine condition. This piece is not in its’ original box, the grommet in the center is missing so the dials are not connected, it’s a bit banged up and stained but I do have the instruction book for it which will be included with the piece.

RESERVED: Palmers Computing Scale Rare


  • Vintage Supply from the 1800s
  • Feedback: 18 reviews
  • Only ships to United States from Pennsylvania, United States.