Loga Calculating Drum, c. 1930 Logarithmic calculator, 23 3/5 in. wide, made by Daemen, Schmidt & Co., Zurich. Rechenwalze Loga, um 1930 Logarithmische Rechentrommel, Walzenbreite 60 cm. Hersteller: Daemen, Schmidt & Co., Zürich.
Loga Calculating Drum, c. 1930 Logarithmic calculator, 23 3/5 in. wide, made by Daemen, Schmidt & Co., Zurich. Rechenwalze Loga, um 1930 Logarithmische Rechentrommel, Walzenbreite 60 cm. Hersteller: Daemen, Schmidt & Co., Zürich.
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.jpg "Source: Christie's")
.jpg "Source: Christie's")
.jpg "Source: Christie's")
.jpg "Source: Christie's")
