PETER WEIL is a long-time contributor to this website, and is known in every corner of the typewriter world as one of the foremost collectors and interpreters of typewriter ephemera.  In most cases, I myself do not like that word, "ephemera" -- it implies that such materials are "extras."  As Peter has proven, without these materials the histories of very many typewriters would be dull and limited to tabular data.  It is though these leaflets, envelopes, instructions, catalogs, photographs and more that very many machines are brought to life.  Peter has supplied some new material for this page at my request, and we're grateful to him for it and hope this page demonstrates the worth of this material, his observation and its analysis in general. 
One of my personal favorites is seen at right.  This is actually the cover of a 1923 trade catalog for the CORONA portable; Peter notes the external strap-type shipping crate assembled around the box containing the typewriter.
Reproduced on the left are two pages from a remarkable E. Remington & Sons advertising catalog from 1875, which describes on two pages the Type Writer, known to us today as the original Sholes & Glidden.

Remember when reading this that not only the machine but the entire concept were new at the time!
August 29, 1905 advertisement for the LAMBERT typewriter, as being sold in Europe through Paris, France.
All illustrations this page courtesy of Peter Weil.  Please do not reproduce these in any form without prior written permission.
1909 advertisement for the HELIOS as manufactured in Munich, Germany.
At left, advertisement from about 1890 for the World Typewriter (World No. 2) as made by the Pope Manufacturing Company, Boston, Massachusetts.
At right, an illustration already used on my Woodstock pages but nevertheless worth seeing here.  A remarkable illustration produced for the cover of a 1920 Woodstock Typewriter Company trade catalog; the completeness of the overall city "scene" from vehicles in the street to towering skyscrapers, and the hustle and bustle of American industry depicted herein are nothing short of stunning.
Fans of early frontstrike typewriters will enjoy these two trade catalog illustrations.  At left, one showing the new Pittsburg Visible 11; above, another showing a rare name variant of the same family, the AMERICO, marketed by the American Automobile Accessories Co.
Peter supplied a great deal of material for our VICTOR pages, and here we see a detail shot from company-produced material illustrating the No. 3 Victor.