Le professorat du dessin : examens de l'état et de la ville de Paris
A French teaching manual on drawing, written by Henry Guédy and Eugène Guillaume and published in Paris in 1904, prepared for candidates sitting the state and city of Paris examinations for drawing teachers. The pictures are plain black-and-white technical plates of projection geometry: orthographic views, circles with construction axes, and hatched solids with dimension lines and lettered points. A designer might take from them the clean, diagrammatic vocabulary of early twentieth-century technical drawing, with thin construction lines, letter labels and scale figures.
