1940 OO Back Cover	1941-1946	1947 Back Cover
1948	1949 Back Cover	1950 Back Cover	1951 Back Cover
1952 Back Cover	1953 Back Cover	1954 Back Cover	1955 Back Cover
1956  Back Cover	1957 Back Cover	1958 Back Cover	1959 Back Cover

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General catalogs were not issued from 1941 to 1946. A supplement catalog, not available to the general public, was available in 1948