Bürk's Adding Machine »Kollektor«, 1910
Württembergische Uhrenfabrik Bürk Söhne, Schwenningen/Germany. With wooden case. Very rare collector's item. Only 2 more known world-wide!
Estimate: € 3,000/4,000
US$ 4,050/5,400
Reserve: € 1,800/US$ 2,430

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