1917 Mexico Revolutionary Covers

5838- 1915, SOLDIER’S MAIL, MEXICO TO MONTERREY, COLURUN OF GENERAL MASS (?), COLLEGE OF CIVIL ENGENERING, VIA SALTILLO

5836- 1912, #314, LAS PeñAS, TO JALAPA

5839- 1915, COVER TO CHIHUAHUA, UNCLAIMED AND RETURNED TO D.L.O.

5832- 1915, (2) #427 TO EL PASO FROM CHIHUAHUA GREAT STICKER ON BACK

5837- 1914, SOLDIER’S MAIL, SILAO TO CARDENAS, SLP., 15TH CAVALRY, EXTREMELY INTERESTING