The work is accompanied by a certificate of authenticity issued by Dr. Ulrich Schumacher
Ulrich Schumacher/Rouven Lotz (Hg.), "Emil Schumacher. Boscone – Faszination Baum", Ausst.-Kat. Emil Schumacher Museum Hagen, Dortmund 2016, p. 9
About Emil Schumacher
The painter and graphic artist Emil Schumacher is one of the central representatives of German Informel. Although his works make use of a decidedly abstract formal language, they often contain formal echoes such as trees, arches or wheels.