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Item#TypeModel No.Model NameMakerCountryMaterialDiameterDateCondition
Fowler's Jubilee Magnum - Extra Long ScaleFowler's Calculators Ltd.UKPressed metal"4-5/8"c. 1948-1949

Notes: "Single sided calculator with a scale length equivalent to a 79"" linear slide rule. Introduced in 1948 to commerate Fowler & Co.'s 50th anniversary. Pressed metal case with chain loop and celluloid disc cursor. No serial number."

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