Mid century Piano stool attributed to Fischel & Wienerlecht, Thonet, Germany, 1960sMid century Piano stool attributed to Fischel & Wienerlecht, Thonet, Germany, 1960s Thonet piano stool, made by Thonet, around 1960s. Thonet was the son of the master tanner Franz Anton Thonet von Boppard. After completing an apprenticeship as a carpenter, Thonet set up as a self employed carpenter in 1819. In the 1830s, Thonet began making furniture from glued and bent wooden slats. His first success was the Boppard plywood chair around 1836. Thonet