# Cover Front Thb Cover Back Thb Postmark Year Postmark Month Postmark Day Postmark City Postmark State Mailed To State Actions
41 1920 12 10 Akron CO KS
42 1930 8 29 Cheyenne Wells CO IA
43 1931 3 14 Kirk CO CO
44 1880 5 7 Leadville CO UT
45 1920 5 4 Arvada CO
46 1930 5 8 Denver CO CO
47 1904 7 27 Denver CO SD
48 1910 12 31 Carbondale CO CO
49 1951 5 29 Denver CO WI
50 1908 9 21 Denver CO CO