»Layton's Improved
Arithmometer«, 1910
Rare English brass stepped-drum "Arithmometer"
with interesting patent dates from 1909
and link to Matth. Bäuerle's patents of 1907.
Oak case. Extremely rare collector's item!
Estimate: € 3.000/4.000
US$ 4,000/5,400
Reserve: € 2.800/US$ 3,780
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