No. 6A: Relief map of Chihuahua
1922
Mexico. Direccion de Estudios Geográficos y Climatologicos
(Map 9 - Texas).
1878
U.S. General Land Office
1:1m
Western Half of Texas.
1901
Cram, George
1:2m
Texas (western portion).
1889
Cram, George
1:2m
Richardson's New Map Of The State Of Texas.
1861
Richardson, W. & D.
No. 7: Coahuila
1922
Mexico. Direccion de Estudios Geográficos y Climatologicos
1:1m
Carta Postal de la Republica Mexicana. Estado de Coahula,
1908
General de Correos Seccion de Transportes.
1:1m
Map illustrating the disputed Boundary between the United States and Mexico
1853
New Mexico.
1931
Johst, Paul Spener
Texas
1927
National Map Company
1:3m
