Front cover. Image 1 of “Architectural Drawing and Lettering.” Frank A. Bourne, H.V. Von Horst, and Frank Chouteau Brown, authors. Published in 1910 by the American School of Correspondence, Chicago, Illinois. In the public domain due to age. via https://archive.org/details/bwb_W7-DDB-713/mode/1upDETAIL OF GREEK DORIC ORDER: an example of conventional shadows and rendering. Page 17, Image 18 of “Architectural Drawing and Lettering.” Frank A. Bourne, H.V. Von Horst, and Frank Chouteau Brown, authors. Published in 1910 by the American School of Correspondence, Chicago, Illinois. In the public domain due to age. via https://archive.org/details/bwb_W7-DDB-713/page/n17/mode/1upgSection Through Vaulted Ceiling, Showing Conventional Shadows and Method of Rendering.Page 56, Image 57 of “Architectural Drawing and Lettering.” Frank A. Bourne, H.V. Von Horst, and Frank Chouteau Brown, authors. Published in 1910 by the American School of Correspondence, Chicago, Illinois. In the public domain due to age. via https://archive.org/details/bwb_W7-DDB-713/page/n56/mode/1upShowing Difference in Rendering Stone and Metal. Page 60, Image 61 of “Architectural Drawing and Lettering.” Frank A. Bourne, H.V. Von Horst, and Frank Chouteau Brown, authors. Published in 1910 by the American School of Correspondence, Chicago, Illinois. In the public domain due to age. via https://archive.org/details/bwb_W7-DDB-713/page/n60/mode/1up