As a copper engraver from the Kingdom of Württemberg, Duttenhofer relied on a disciplined method of line work. He avoided the loose styles of his contemporaries in favour of mathematical clarity. His prints of the Cathedral of Cologne use fine hatching to describe stone textures and structural depth. This approach turned architectural plans into art that maintained functional detail. Every line was calculated to represent the physical reality of the stone.

Modern collectors value these prints for their clean geometry and historical weight. The monochrome palette of a copper engraving fits well in contemporary or traditional interiors. These works show the intersection of art and engineering. They provide a sense of order that appeals to those who appreciate the technical skill required to render masonry on paper. His work remains a primary example of the precision of nineteenth-century printmaking.