Course and speed calculator Mk IIA. HTA(1928) Ltd

Made:
1928
maker:
Hall Telephone Accessories Ltd.
Course and speed calculator Mk IIA

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Course and speed calculator Mk IIA
Science Museum Group
© The Board of Trustees of the Science Museum

Course and speed calculator Mk IIA. HTA(1928) Ltd, AM 6B/125 in fitted wooden case

Details

Category:
Navigation
Object Number:
1994-1178
type:
calculators