Outstanding among the categories in this Section is the one dealing with automobiles (130 pieces). These were exhibited at the Smithsonian Institutions, as described in the Washington Daily News for Oct. 23, 1939, page 14. (See also Hobbies Magazine, December 1939). In addition, there are 100 aeronautical pieces including several on balloons, over a hundred pieces on letters, postcards, stamps, the telegraph and telegrams, 150 railroad pieces, many with rare lithographs of early engines and trains upon the covers, 125 telephone pieces, and other music dealing with trolley cars, rolling chairs, the Atlantic Cable (see miscellaneous), oil, ships and the sea (see miscellaneous), radio, horse-drawn vehicles, etc.