John Pilsworth and San Francisco Free People Check 

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History - The Screened Image

thescreenedimage.com
... a process also used by William Morris. In John Pilsworth of San Francisco also took out a patent for multicolor printing, using the screen process.

history Archives | Great Atlantic Outfitters | Jacksonville, Floridagreatatlanticoutfitters.com/tag/history/

greatatlanticoutfitters.com
In 1914, John Pilsworth of San Francisco patented a multicolor screen printing process. Right after this time, screen printing was used extensively for recruiting ...
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