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Operating Instructions of the Odhner "Auto-Multiplier" XX-11-C This is the Odhner Adder with the multiplier keys up the right side of the keyboard. This manual has very nice pictures of several other 'Facit' products.
Original-Odhner Model 227 Operators Instruction Manual In Swedish. Printing in 1959. Has instructional pictures and math examples.
Odhner Hand Operated Calculator Operators Manual Written in French. (Similar to)*Ernest Martin-Pg.68. Fig 37.
120ofnings-Exempel-W.T.Odhners In Swedish. This manual was original printed in Stockholm in 1891. Operators manual for one of the very earliest Odhner Machines. Shows how to extract square root and many other interesting math examples. *Ernst Martin-Pg 12. Fig 3.
Operators Manual for Odhner Calculators Models 227, 237, 135, 125 Dated 1955. In German.
Operators Manual For Odhner Calculators Models 227,237,135,125 In English.
Parts Manual For The Hand Operated Odhner. Contains 17 pages of exploded views of machine. Printed 1930.