»Laytons Improved Arithmometer«, 1910
Rare English brass stepped-drum "Arithmometer"
with interesting patent dates from 1909 and link to Matth.
Bäuerle's patents from 1907. Oak case.
Extremely rare collector's item!
Estimate: 3.000/4.000
US$ 3,800/5,100
Reserve: 2.800/US$ 3,585
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