Recently there were two Sieben Kugel Chairs or Seven Balls Chairs for sale at Phillips de Pury & Company and each chair fetched $ 37,500.
Rare side chair, for the Kunstschau Wien 1908, model no. 371, ca. 1908
Beechwood, leather. 43 in. (109.2 cm.) high Produced by Jacob & Josef Kohn, Austria.
ESTIMATE $50,000-70,000
SOLD AT $37,500