Newton Automatic Lettering Pen Co., Pontiac, Mich. (1914). Practical compendium of commercial pen lettering & designs: A complete instructor in the use of the marking, shading, plain, special, border and shadow lettering pens. Also alphabetical list of advertising phrases suitable for show cards, posters, etc. Newton Automatic Shading Pen Co..
Lua i Stíl Chicago (17ú heag.)Newton Automatic Lettering Pen Co., Pontiac, Mich. Practical Compendium of Commercial Pen Lettering & Designs: A Complete Instructor in the Use of the Marking, Shading, Plain, Special, Border and Shadow Lettering Pens. Also Alphabetical List of Advertising Phrases Suitable for Show Cards, Posters, Etc. Pontiac, Mich.: Newton Automatic Shading Pen Co., 1914.
Lua MLA (8ú heag.)Newton Automatic Lettering Pen Co., Pontiac, Mich. Practical Compendium of Commercial Pen Lettering & Designs: A Complete Instructor in the Use of the Marking, Shading, Plain, Special, Border and Shadow Lettering Pens. Also Alphabetical List of Advertising Phrases Suitable for Show Cards, Posters, Etc. Newton Automatic Shading Pen Co., 1914.