Ceramic plate with Labor of Hercules opening Panama Canal after design by Perham Wilhelm Nahl, a souvenir of Panama-Pacific International Exposition (1915) in private collection. San Francisco, CA.

Ceramic plate with Labor of Hercules opening Panama Canal after design by Perham Wilhelm Nahl, a souvenir of Panama-Pacific International Exposition (1915) in private collection. San Francisco, CA.
Photo by Jim Steinhart © 2015, all rights reserved. (Ref: CAFNW307)

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California Historical Society Museum, San Francisco
Panama-Pacific Exposition 1915

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