1939.
Search Results
1937. Dates printed on map: April 1st, 1930; Revised to September 1st, 1936; Revised to May 1st, 1937.
1937. Dates printed on map: April 1st, 1930; Revised to September 30th, 1933; Revised to May 1st, 1937.
1912.
1929.
1973.
1909.
1924. Map has two dates noted: January 11th 1915; Corrected - Jan 1924.
1910.
1921.