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