Arithmometer
»Tim Mod. 1/Unitas«, 1907
German stepped drum
calculating machine in original Mahogany case. Serial no. 229 (!). Very early
model by Ludwig Spitz. With original brass dealer label. Historically very important collector's item and
exhibition piece!
Estimate: € 2,500/4,000
US$ 3,630/5,800
Reserve: € 1,850/US$ 2,680
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