Two rare Art Nouveau corner armchairs made of solid maple, designed by Josef Maria Olbrich and executed around 1902 by Michael Niedermoser, Vienna. Outstanding craftsmanship. The Niedermoser furniture factory is the furnishing company that "adapted Olbrich's compositions," according to Josef Folnesics in "Deutsche Kunst und Dekoration, Vol. 5, Darmstadt 1899-1900, p. 256." References: Joseph Maria Olbrich, Jan Latham (ed.), Academy Editions, London 1980. Ideen von Olbrich, Arnoldsche Verlag, Stuttgart 2012, p. 47. I have official proof of authenticity such as vintage catalogs, designer records, or other literature sources and take full responsibility for any authenticity issues arising from misattribution