Now showing: United States - Postage stamps (1910 - 1919) - 13 stamps.
WM: 3 Perforation: 10
8. February WM: 1 Perforation: 10
17. June WM: 3 Perforation: 11
WM: 3 Perforation: 10
WM: 3 Perforation: 10 Horizontally
WM: 3 Perforation: 10 Vertically