Three calculators early 20th century,
comprising a Fowler's Long Scale circular slide rule in watch-form case and chromed metal carrying case; a Fowler's Extra Long Scale circular slide rule in leather carrying case and an Otis King's Patent cylindrical slide rule in leather carrying case (3)
Estimate:
£300 - 400
€350 - 470
US$ 470 - 630
€350 - 470
US$ 470 - 630
Category: Collectibles / Scientific Instruments
Auction terms and conditions
Contacts
Jon Baddeley
Bonhams
Work
Montpelier Street
London,
SW7 1HH
United Kingdom
WorkTel:
0207 393 3872
FaxFax: +44 20 7393 3873
Specialist
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Scientific Instruments
