Circular No.101C dial slide rule with sythetic lea

Made:
1965-70 in Chicago
maker:
Pickett

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Circular No.101C dial slide rule with sythetic leather case and instructions, by Pickett, Chicago

Details

Category:
Mathematics
Object Number:
1998-468
Materials:
complete, paper, plastic and synthetic leather
type:
circular slide rule
credit:
Mr J.C. Michie