The Precision of a Lithographer Daniel Cornelius Gesell was a man defined by the technical rigor of his training. Born in Mannheim, Germany, he did not rely on vague inspiration but on the disciplined mechanics of the Düsseldorf Academy. His early years were spent mastering the architecture class of Rudolf Wiegmann before shifting his focus toward portraiture under Karl Ferdinand Sohn. This transition from structural drafting to the nu…