Category:Thacher Cylindrical Slide Rule

Media in category "Thacher Cylindrical Slide Rule"

The following 6 files are in this category, out of 6 total.

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  ChampaignCountyHistoricalMuseum 20080301 4273.jpg 2,824 × 1,772; 1.1 MB
  
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  Independence Seaport Museum 080.JPG 3,264 × 2,448; 3.45 MB
  
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  Senator John Heinz History Center - IMG 7824.JPG 3,264 × 1,304; 1.31 MB
  
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  Thacher's Calculating Instrument.jpg 3,635 × 1,813; 1.62 MB
  
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  The Thacher Calculator (33148590206).jpg 3,365 × 2,239; 4.19 MB
  
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  Various slide rules - MIT Slide Rule Collection - DSC03608.JPG 5,472 × 3,648; 5.27 MB