Length of main body 31.7cm. Please inspect the photographs closely to assess the condition and any damage to the slide rule.The item "ANTIQUE BOXWOOD DRING & FAGE CUSTOM AND EXCISE DOUBLE SLIDE RULE C1845-9" is in sale since Wednesday, June 24, 2020. This item is in the category "Antiques\Science/Medicine\Scientific Instruments". The seller is "trinitytrove2014" and is located in Llanduduno, Conwy. This item can be shipped to United States, European Union member countries, Japan, Canada, Australia.