Circular slide rule for air navigation computations

Made:
Chicago
Circular slide rule for air navigation computations, plastic

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Circular slide rule for air navigation computations, plastic
Science Museum Group
© The Board of Trustees of the Science Museum

Circular slide rule for air navigation computations, plastic, in vinyl holder with instructions, made by J.B. Carroll Company, Chicago

Details

Category:
Mathematics
Object Number:
1985-269
type:
circular slide rule (navigation)
credit:
Crosby, R.C.