Includes a number of underrepresented typewriter manufacturers. Each manufacturer listed here has one piece of ephemera in this file. Acme-Keystone Mfg. Co, Allen Wales, Bar-Let portable Typewriter, Barrett Adding Machine, The Boss Typewriter, Brooks Typewriter Co., Burlingame Telegraphic Typewriter Co., Burnett Typewriter, Check Writer Company, C.L. Dahlberg & Co., American Standard Typewriters, The Coffman Pocket Typewriter, Comptometer, The Daughtery Typewriter, Edison Mimeograph, Electromatic Typewriter, Ellis Adding Typewriter, Emerson Typewriter Co., Fay-Sholes, Webster Typewriter, Friden Calculating Machine Co., Hartford Typewriter, Herrington Type-Writer, Horton Typewriter, Imperial Typewriter, International Multigraph Co., Jackson Typewriter Co., The Jewett Typewriter, Louis Marx & Co. Inc., Knickerbocker Typewriter Co., Lawyers' Stenographic & Typewriter Co., Magnavox, Marchant Calculating Machine Company, Molle Typewriter Corp., Moon Hopkins Typewriter, Munson Typewriter Co., Pennsylvania Typewriter Co., Philadelphia Typewriter Co., Pratt's Typewriter, Purer & Company, Remington Sholes Co. Typewriter, Reliance Visible Typewriter, Royal Bar-Lock Typewriter, Souris Typewriter Co., Southern Typewriter Co., Standard Typewriter Co., Stenograph, Swift Business Machines Corp., Texas Instruments, Tom Thumb Typewriter, Typograph, Unique Dependable Typewriter, Union Typewriter Co., Varitronics, and Yetman Transmitting Typewriter.