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Most of the photos on this site were extracted from reference images (high-resolution tiffs, 20 to 200 megabytes in size) from the Library of Congress research archive. (To query the database click here.) Many were digitized by LOC contractors using a Sinar studio back. They are adjusted by your webmaster for contrast and color in Photoshop before being downsized and turned into the jpegs you see here.

 
 
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VINTAGRAPH • WPA • WWII • THE TOY DEPARTMENT, 1913

Pratt Wig-Wag: 1917

Pratt Wig-Wag: 1917

August 1917. "Wig-Wag, Pratt Institute." View full size. G.G. Bain Collection.

 

Give Me a "K"

Shouldn't the title here be "Pratt Semaphore" instead of "Pratt Wig-Wag"? Wigwag signaling is done with one flag and we see two flags here. The Wigwag system is similar to Morse Code in that the most used alphabet letters require the fewest moves of the flags. The Semaphore Code uses two flags, usually divided on the diagonal. See this link for the differences.

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Shorpy.com | History in HD is a vintage photo blog featuring thousands of high-definition images from the 1850s to 1950s. The site is named after Shorpy Higginbotham, a teenage coal miner who lived 100 years ago.

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