$20.00
5999- 1931, 5 DECEMBER, SEE PHOTO, LIGHT PURPLE CACHET
5937- 1930, REGISTERED (2) #671 ON COVER, MONTERREY TO AUSTRIA
5936- 1930, WITH FIVE DIFFERENT REVENUES USED AS POSTAGE
5934- 1914, #386, WITH POSTAGE DUE 2¢ PAID, WITH #385, TO NOGALES
5929- 1913, CANANEA, SONORA, LONE POSTAGE DUE ON COVER – GREAT COVER TO NOGALES,
5939- 1917, RAIL ROAD CANCELS TO SAN FRANCISCO, CA
5949- 1935, PORT OF CALL, GUAYMAS – U.S.S. WORDEN
