# Cover Front Thb Cover Back Thb Postmark Year Postmark Month Postmark Day Postmark City Postmark State Mailed To State Actions
1 1911 1 18 New York NY
2 1887 5 4 New Orleans LA
3 1893 10 16 Paso del Norte
4 1898 8 19 Baltimore MD
5 1896 7 13 Baltimore MD
6 1898 11 11 New York NY
7 1947 4 22 Powderhorn CO OK
8 1951 9 19 Loveland CO NE
9 1912 4 30 Bismarck ND IL
10 1975 4 8 Denver CO