[GRAPHICS--SAN FRANCISCO 1915 AND 1939]. A collection of 13 posters, prints and decorated certificates from the 1915 Panama-Pacific International Exposition and the 1939 Golden Gate International Exposition at San Francisco. Including: Decorated presentation certificate from the 1915 exposition; photograph of the grounds under construction; Standard Oil Company of California Presents Mickey's and Donald's Race to Treasure Island. Color lithographed poster. (13)