1910 - 1919
Mexico, Michel 317, Cover
1914. MEXICO. 5 C SONORA. on cover cancelled GUAYMAS SON 23OCT 14. to La Cananea.
Mexico, Michel 430-431U, Cover
1916. 2X 4C. 4 X 3 C. IMPERFORATED. on cover to Monterrey, N.L. from N. LAREDO 22 AGO 16.Scarce franking. Not official according to Michel.
Mexico, Michel 544, Cover
1918. 4x 20 c. 29 AG 18. to Nuevo Laredo, Tamps. CENSORED CUSTOM HOUSE Laredo Texas. Unusual censorcancel.
Mexico, Michel 543, Cover
1918. 5x 10 c. 20 MA 18. to Nuevo Laredo, Tamps. CENSORED CUSTOM HOUSE Laredo Texas. Unusual censorcancel.