Now showing: United States - Airmail stamps (1918 - 2012) - 1 stamps.
13. July WM: None Perforation: 11¼
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![[William T. Piper - Hair Touches Top Edge of Design, type CW1]](https://swmedia-4cd6.kxcdn.com/media/catalogue/United-States/Airmail-stamps/CW1-s.jpg)
