Decrement dial for nautical calculations

designer:
Rollo Appleyard
Decrement dial for nautical calculations, English

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Decrement dial for nautical calculations, English
Science Museum Group
© The Board of Trustees of the Science Museum

Decrement dial for nautical calculations, English, designed by Commander Rollo Appleyard, RNVR, in original mahogany case

Details

Category:
Mathematics
Object Number:
1990-626
type:
calculator (nautical)
credit:
Purchased (Tesseract)