Two Arts and Crafts oak piano stools designed by Wilhelm Schmidt and made by Prag-Rudniker, in Vienna.
One with original fabric and Tulip style cut-outs to the top with three slats to each side and lower twin stretchers.
A cane seat version of this stool.
There was an identical version with cane seat for sale in Germany at Von Zezschwitz on the 30th June 2011 with an estimate of 1800 Euros.
Height 19 1/2", Depth 17 1/2", Width 18". Circa 1901.