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Hand-drawn sketch map of Paso de Bartolo, Viejo. Volume 1, page 132.
Date: 1833
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Caption: "A 12" Disappearing Battery," c. 1915. View of a barbette equipped with a 12" disappearing gun. 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: 1915
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Caption: "Palace of Fine Arts, San Francisco," built for the Panama-Pacific International Exposition. William McCarthy is seen smiling for the camera, 1915.
Date: 1915
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Caption: "The Monarch Lead, Zinc, and Silver Mine - B.C. Canada. The workmen change shifts by crossing a deep canyon in the buckets that are used to transport the ore from the mine to the rock crushers. Note the arrows indicating mine operations on the cliff," c. 1935.
Date: 1935