George W. Richardson's Direct Reading Slide Rule,

Made:
1909-1916 in Chicago
designer:
George W. Richardson

George W. Richardson's Direct Reading Slide Rule, made in Chicago, with instruction booklet, copyright 1909, in cardboard box

Details

Category:
Mathematics
Object Number:
1990-751
type:
slide rules
credit:
Auction Team Koln
status:
Permanent collection

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