Typewriter Advertising Covers. Balance of 31 illustrated ad covers, 1880-1900's; the array of products and companies including International Typewriting Co. - Boston, Mass., Hammond Type Writer Co. (4 different), Blickensderfer Typewriter (2 different), The Franklin Typewriter (3 different), etc.; some flaws, Very Fine overall. Estimate  $500 - 750. $0 (Image)