# Cover Front Thb Cover Back Thb Postmark Year Postmark Month Postmark Day Postmark City Postmark State Mailed To State Actions
311 1974 8 17 Denver CO
312 1948 11 24 San Francisco CA CO
313 1947 1 29 Denver CO CO
314 1904 2 15 Idaho Springs CO CO
315 1984 6 26 Colorado Springs CO DC
316 1928 10 31 Colorado Springs CO MO
317 1949 8 6 Colorado Springs CO KS
318 1935 11 29 Colorado Springs CO
319 1924 7 2 Colorado Springs CO CA
320 1960 12 5 Mertzon TX CO