5937- 1930, REGISTERED (2) #671 ON COVER, MONTERREY TO AUSTRIA
6010- 1930, 20 APRIL, SEE PHOTO, BLACK CACHET
6011- 1930, 20 APRIL, SEE PHOTO, PURPLE CACHET
5999- 1931, 5 DECEMBER, SEE PHOTO, LIGHT PURPLE CACHET
6000- 1931, 19 JAN, SEE PHOTO, LIGHT PURPLE CACHET
6001- 1931, 22 MAY, SEE PHOTO, PURPLE CACHET
6002- 1931, 15 MAY, SEE PHOTO, PURPLE CACHET
6018- 1931, 7 DECEMBER, SEE PHOTO, PURPLE CACHET
6022- 1931, 5 DECEMBER, SEE PHOTO, PURPLE CACHET
6026- 1931, 18 MAY, SEE PHOTO, PURPLE CACHET
5941- 1933, CERTIFIED WITH 2 AIR MAIL STAMPS + 1 SURFACE STAMP TO GERMANY
5938- 1935, (1) PAIR AND (1) SINGLE ON REGISTERED COVER TO LONG BEACH, CA, PROOFS USED AS POSTAGE
5946- 1935, REGISTERED, (2) 10¢ AND (2) .20¢ PROOFS USED AS POSTAGE, FROM MEXICO TO LONG BEACH, CA
5949- 1935, PORT OF CALL, GUAYMAS – U.S.S. WORDEN
5950- 1935, PORT OF CALL, MAZATLAN, U.S.S. WORDEN
5951- 1935, PORT OF CALL, LA PAZ, U.S.S. CUSHING
5947- 1936, PORT OF CALL, ACAPULCO, U.S.S. FAIRFAX
5953- 1937, PORT OF CALL, PICHILINQUE, U.S.S. PERKINS, BEAUTIFUL RED BOAT SEAL ON BACK
5948- 1938, PORT OF CALL, AT SEE OF ACAPULCO – U.S.S. POMPANO
5952- 1938, PORT OF CALL, MANZANILLO, U.S.S. POMPANO
6023- 1943, 14 JUNE, SEE PHOTO, PURPLE CACHET
6024- 1952, 30 OCTOBER, SEE PHOTO, PURPLE CACHET
5936- 1960, #909 ON FIRST DAY COVER, NICE AND CLEAN
