1917 Mexico Newer & B/B Covers

5936- 1930, WITH FIVE DIFFERENT REVENUES USED AS POSTAGE

5927- 1922, YUCATAN (2) #2’S, LARGE MARGINS, CAMPECHE TO MERIDA, ABIERTA POR EL CENSOR LABEL

5936- 1960, #909 ON FIRST DAY COVER, NICE AND CLEAN

5930- 1918, CANANEA, SONORA TO NOGALES, WITH BACK STAMP, 5¢ POSTAGE DUE USED AS POSTAGE. NO BACK FLAP

5926- 1924, 1-2 YUCATAN, MERIDA TO CAMPECHE, VERT. CREASE, ABIERTA POR EL CENSOR LABEL