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2 " Russian Circular Slide Rule

2    Category : Science & Medicine (Pre-1930) > Scientific Instruments > Other
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2

    

Uploaded by son-goroda on May 6, 2015
        
Known Information
Category : Science & Medicine (Pre-1930) > Scientific Instruments > OtherItem Id: 126883
Original/Reproduction: OriginalEstimated value: around 30 USD
More info
The 2" diameter body is made of plastic and metal, with domed plastic faces
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