A Bridge, Design for Washington Board of Trade Dinner, May 13, 1908

River Rapids, Design for Washington Board of Trade Dinner, May 13, 1908

1908 · Pen and black ink, graphite on thin board

Washington Skyline, Design for Washington Board of Trade Dinner, May 13, 1908

1908 · Pen and black ink, graphite on thin board

Three Landscapes, Printed proof for Design for Washington Board of Trade Dinner, May 13, 1908

1908 · Brush and watercolor, graphite over proof printed in blue ink on paper

Three Landscapes, Design for Washington Board of Trade Dinner, May 13, 1908

1908 · Pen and black ink, graphite on thin board

Half-tone Engraving: How to Obtain a Patent, Copp & Co. Patent Attorneys, Washington, D.C.

1898 · Halftone engraving in black ink on paper

Design for a Half-tone Engraving: How to Obtain a Patent, Copp & Co. Patent Attorneys, Washington, D.C.

1898 · Pen and black ink, brush and gouache, graphite on paper, laid down on brown board