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細節
A Tate's Patent Arithmometer
by C. & E. Layton, London, with six slides, twelve-digit capacity, brass bedplate and mahogany case with brass reinforcements and carrying handles and adjustment instructions in lid -- 19in. (48cm.) wide
by C. & E. Layton, London, with six slides, twelve-digit capacity, brass bedplate and mahogany case with brass reinforcements and carrying handles and adjustment instructions in lid -- 19in. (48cm.) wide