1928 Mexico Newer & B/B Covers

5941- 1933, CERTIFIED WITH 2 AIR MAIL STAMPS + 1 SURFACE STAMP TO GERMANY

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

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

5938- 1935, (1) PAIR AND (1) SINGLE ON REGISTERED COVER TO LONG BEACH, CA, PROOFS USED AS POSTAGE

5945- 1920, REGISTERED FROM MEXICO TO GERMANY