'Leiber's Five Letter American Telegraph Code', book issued 1915
1915
1915
1636
1973
1864
1543
1888
1888
2019
1850
1977
1968
1866
1888
1823
1931
1752
1989
1956
1921
1951-1974
1914-1970
1926-1993
1958
1951-1974
1961
1916-1982
1961
1957
1957
1950
1939-1993
1970
1924
1960
1939-1993
1951
1939
1920-1993
1926-1993
1916-1982
1959
1962
1926-1993