1933 Mexico Newer & B/B Covers

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

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

5951- 1935, PORT OF CALL, LA PAZ, U.S.S. CUSHING

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

5947- 1936, PORT OF CALL, ACAPULCO, U.S.S. FAIRFAX