1929 Mexico Newer & B/B Covers

5934- 1914, #386, WITH POSTAGE DUE 2¢ PAID, WITH #385, TO NOGALES

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

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

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

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