National Geographic Collection
1910's
| | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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| 1910 | O | O | O | O | O | O | O | O | O | O | O | O | 1910
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| 1911 | - | - | - | - | - | x | - | - | - | - | - | - | 1911
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| 1912 | - | - | - | x | - | - | - | - | - | - | - | O | 1912
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| 1913 | - | O | - | O | - | - | - | - | - | - | - | O | 1913
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| 1914 | - | - | - | - | - | - | - | - | - | - | - | - | 1914
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| 1915 | X | X | X | X | X | X | X | X | X | X | X | X | 1915
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| 1916 | X | x | X | X | X | X | X | x | x | O | X | X | 1916
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| 1917 | X | X | X | X | X | x | X | X | X | X | X | X | 1917
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| 1918 | O | X | X | X | X | X | O | X | X | X | O | O | 1918
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| 1919 | X | o | x | Xx | Xx | x | Xx | Xx | Xx | x | x | x | 1919
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1920's
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| 1920 | x | x | x | xx | Xx | Xx- | Xx | x | XXx | Xx- | x | x | 1920
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| 1921 | X | XX | XX | X | X | X | X | X | X | X | XX | X | 1921
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| 1922 | X | XX | X | X | X | X | x | BX | X | BX | Bx | BX | 1922
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| 1923 | X | X | X | X | X | X | X | X | X | X | X | X | 1923
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| 1924 | XX | X | X | X | XX | XX | X- | XXX | XX | XX | XX | XX- | 1924
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| 1925 | x | XX | XX | XX | X- | XX | X- | X- | X | X | X | X | 1925
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| 1926 | XX | XX- | X | XX | 3X | 3X | XX | XX | 4X | 3X | 3X | 3X | 1926
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| 1927 | XX | XX | X | X- | X | XX | BX | BXX | X | XX | BXX | BXX | 1927
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| 1928 | BXX | BX | BX | Bx | Bx | Bx | BX | BX | BX | X | Bx | BX | 1928
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| 1929 | BX | BX | BX | X | BX- | BX | X | X | X | x | XX | XX | 1929
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| | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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1930's
| | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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| 1930 | X | X | X | X | X | X | X | X | X | X | X | X | 1930
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| 1931 | X | X | X | X | X | X | X | X | X | X | X | X | 1931
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| 1932 | X | X | X | X | X | X | X | BX | BX | BX | BX | BX | 1932
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| 1933 | BX | BX | X | BX | X | X | X | X | X | X | X | X | 1933
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| 1934 | X | X | X | X | X | X | X | X | X | X | X | X | 1934
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| 1935 | 5X | 3X | 3X | X- | 3X | XX | BXX | BXX | X | BXX | BXX | XX | 1935
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| 1936 | - | X | X | X | X | X | x | X | X | X | X | X | 1936
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| 1937 | X | X | - | X | X | X | BX | B- | BX | BX | BX | BX | 1937
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| 1938 | BX | BX | B- | BXX | BX | BX | BX | BX | B- | BX | B- | BX | 1938
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| 1939 | BX | BXX | BX | BX | BXX | BX | X | X | - | X | X | XX | 1939
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1940's
| | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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| 1940 | X | X | X | X | BX | BX | X | X | X | BX | BX | BX | 1940
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| 1941 | BXx | BXx | BXx | BXx | BXx | BXx | BXx | BXx | BXx | BXx | BXx | Xx | 1941
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| 1942 | X | X | X | x | X | X | X | X | X | X | X | X | 1942
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| 1943 | X | Xx | Xx | Xx | Xx | Xx | BXx | BXx- | BXx | Bx- | Bx- | BXx | 1943
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| 1944 | BXX | BXX | BXX | BXX | BXX | BXX | XX | XX | XX | XX | XX | XX | 1944
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| 1945 | BXX | BXX | BXX | BXX | BXX | BXX | XX | XX | XX | XX | XX | XX | 1945
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| 1946 | XX | XX | XX | XX | XX | XX | BXX | BXX | BXX | BXX | XX | BXX | 1946
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| 1947 | BXx | BXx | BXx | BXx | BXx | BXx | BXx | BXx | BXx | BXx | BXx | BXx | 1947
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| 1948 | X | XX | XX | 3X | XX | X | X | XX | X | XX | X | X | 1948
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| 1949 | X | X | X | X | X | X | X | XX | XX | 3X | XX | X | 1949
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| | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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1950's
| | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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| 1950 | X | X | x- | - | XX | X | X | X | X | X | X | X | 1950
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| 1951 | X | X | X | X | X | X | X | X | X | X | X | X | 1951
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| 1952 | X | X | X | X | X | X | X | X | X | X | X | X | 1952
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| 1953 | X | X | X | X | XX | XX | XX | XX | XX | XX | X | X | 1953
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| 1954 | XX | XX | XX | XX | X | X | X | XX | XX | XX | XX | XX | 1954
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| 1955 | X | XX | X | X | X | X | X | X | X | X | X | X | 1955
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| 1956 | X | X | X | X | X | X | X | X | - | X | X | X | 1956
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| 1957 | X | X | X | X | X | X | X | X | X | X | X | X | 1957
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| 1958 | X | -x | - | X | X | X | X | X | X | X | X | X | 1958
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| 1959 | X | X | X | X | X | X | X | X | X | X | X | X | 1959
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| | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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1960's
| | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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| 1960 | XX | X | XX | XX | XX | XX | XX | X | X | XX | X | X | 1960
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| 1961 | X | X | X | XX | X | X | XX | X | X | XX | X | X | 1961
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| 1962 | XX | XX | XX | XX | XX | XX | 3X | XX | XX | 4X | XX | XX | 1962
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| 1963 | XX | XX | XX | XX | XX | 3X | X | XX | XX | XX | XX | XX | 1963
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| 1964 | XX | X | XX | XX | XX | XX | XX | X | XX | X | XX | XX | 1964
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| 1965 | X | XX | X | X | X | X | X | X | X | X | X | X | 1965
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| 1966 | X | XX | X | X | X | X | X | X | X | X | X | X | 1966
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| 1967 | X | X | X | X | X | X | X | X | X | X | X | X | 1967
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| 1968 | X | X | X | X | X | X | X | X | X | X | X | X | 1968
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| 1969 | X | X | X | X | X | X | X | X | X | X | X | X | 1969
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| | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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1970's
| | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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| 1970 | X | XX | X | X | X | X | XX | XX | X | X | X | X | 1970
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| 1971 | X | X | X | X | X | X | X | X | X | X | X | X | 1971
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| 1972 | X | X | X | X | X | X | X | X | X | X | X | X | 1972
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| 1973 | X | X | X | X | X | X | X | X | X | X | X | X | 1973
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| 1974 | X | X | X | X | X | X | X | X | X | X | X | X | 1974
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| 1975 | X | XX | X | X | X | X | X | X | X | X | X | X | 1975
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| 1976 | XX | XX | XX | XX | XX | XX | XX | XX | XX | XX | XX | XX | 1976
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| 1977 | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 1977
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| 1978 | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 1978
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| 1979 | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 1979
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| | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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1980's
| | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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| 1980 | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 4X | 4X | 5X | 1980
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| 1981 | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 1981
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| 1982 | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 1982
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| 1983 | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 3X | 3X | XX | XX | 3X | 1983
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| 1984 | 3X | 3X | XX | XX | XX | XX | XX | XX | XX | XX | XX | XX | 1984
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| 1985 | XX | XX | XX | X | X | X | X | XX | X | X | X | X | 1985
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| 1986 | X | X | X | X | X | X | X | X | X | X | X | X | 1986
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| 1987 | X | X | X | X | X | X | X | X | X | X | X | X | 1987
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| 1988 | X | X | X | X | X | X | X | X | X | X | X | X | 1988
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| 1989 | X | X | X | X | X | X | X | X | X | X | X | X | 1989
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| | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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1990's
| | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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| 1990 | X | X | X | X | X | X | X | X | X | X | X | X | 1990
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| 1991 | X | X | X | X | X | X | X | X | X | X | X | X | 1991
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| 1992 | X | X | X | X | X | X | X | X | X | X | X | X | 1992
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| 1993 | X | X | X | X | X | X | X | X | X | X | X | X | 1993
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| 1994 | X | X | X | X | X | X | X | X | X | X | X | X | 1994
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| 1995 | X | X | X | X | X | X | X | X | X | X | X | X | 1995
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| 1996 | X | X | X | X | X | X | X | X | X | X | X | X | 1996
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| 1997 | X | X | X | X | X | X | X | X | X | X | X | X | 1997
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| 1998 | X | X | X | X | X | X | X | X | X | X | X | X | 1998
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| 1999 | X | X | X | X | X | X | X | X | X | X | X | X | 1999
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| | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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X - Have it
x - Expecting it
- - Have it, bad condition
o - Might be getting it
O - Need it
B - Have it bound
Doug Lindholm
Last modified: Mon Mar 5 12:15:09 MST 2001