Traite de geometrie
A French secondary-school geometry textbook by Claude Guichard, published in Paris by Vuibert et Nony in 1903 for students and teachers of the lycée course. The 192 figures are fine line diagrams on cream paper—triangles, tangent circles, cones, and pencils of solid, dashed, and dotted construction lines with italic and roman point labels—usable as linework, grid motifs, or textural overlays.
