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Details and Image



TypeModel No.MakerCountryConstruction
Material
DateScale LengthArea of Use
Alcohol Slide Rules
Farmar / Computing Rule for the Wine & Liquor Trade
F.C. Farmar
UK
Wood/brass
1902-1919
50 cm
Wine & Spirit

Notes: "Farmar made proprietary rules based on gauging but for the wholesale and retail wine & sprit trade. This model is for gauging barrels, proof calculations, pricing and profit calculations, unit conversions and blending. "


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