
Editorial Use Only / No Merchandising Mandatory Credit: Photo by Everett/REX/Shutterstock (1409964a) Alexander Calder (1870-1945), working on an allegorical sculpture for the Panama-Pacific International Exposition in San Francisco, California. 1914. Alexander Calder (1870-1945), working on an allegorical sculpture for the Panama-Pacific International Exposition in San Francisco, California. 1914.