Bookmarks

• 
  McCarthy Album 01, Photograph 156

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  Caption: "Prado," a continuos covered arcade and walkway demarcated by arches at the Panama-California Exposition in San Diego.

  Date: 1915

• 
  McCarthy Album 05, Photograph 172

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  Caption: "Retracting 6 inch Gun.," c. 1909. View of crew installing coastal defense weaponry. Retracting or disappearing guns were a form of artillery developed in the nineteenth century in which heavy artillery guns were placed on rotating carriages that allowed retraction of the weapon after firing, to enable reloading while under enemy fire.

  Date: 1909