Plumly Navigational Computer and Dist-O-Graph

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Country of manufacture: U.S.,            Date of manufacture: >=1958
Outer Disk Diameter :9.8 cm,               Weight: 99.6 gms
Materials: Painted aluminum and steel
Scales:
Front:
Back: Blank
Gauge Marks: [      ]
Condition: C5 (Normal signs of use)
Came with: nothing
Notes: Pictures of another version of this device and images of its User Manual are available here. This information is from the Richard Davis Collection, maintained on the Oughtred Society's 'Archive of Collections' page.

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