1917 Mexico Revolutionary Covers

5830- 1914, #359, 20¢ BISECT, NOGALES CANCELS, – RR CANCEL 205 GUAYMAS ON BACK

5835- 1914, #359 BISECT, FROM GUAYMAS TO NOGALES, W/BACKSTAMP

5849- 1911, LAS PeñAS TO GUADALAJARA

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

5887- 1914 ON COVER WITH FAINT RR CANCEL, FROM HIDALGO TO MEXICO