$20.00
6006- 1929, 9 MARCH, SEE PHOTO, PURPLE CACHET
5939- 1917, RAIL ROAD CANCELS TO SAN FRANCISCO, CA
5951- 1935, PORT OF CALL, LA PAZ, U.S.S. CUSHING
5941- 1933, CERTIFIED WITH 2 AIR MAIL STAMPS + 1 SURFACE STAMP TO GERMANY
5931- 1915, INTERESTING POSTAGE DUE COVER, .10¢ PAID WITH #348
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
