A THOMAS DE COLMAR ARITHMOMETER
PARIS, MID TO LATE 19TH CENTURY
the 6 x 7 x 12 model signed to the brass plate
THOMAS DE [Colmar], INVENTEUR, EXPOSITION 16 RUE DE LA TOUR DES DAMES / S’adresser, 44 RUE DE CHATEAUDIN, 44, PARIS No. 1846, in wooden carrying case with inlaid cartouche
Arithmomêtre.18 x 7 x 4in. (46 x 18 x 10.5cm.) in case
Discover more about the part this object played in the evolution of the modern PC in our
Christie’s Digest feature.
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