Parker, A.T., 27 Sep 71 (Yuma), manuscript postmark (Meyer 1A, rarity 8) on cover to San Jose, Cal., manuscript cancel tying 3¢ Banknote; minor cover edge wear and reduction at left, otherwise Very Fine, this is the Unique Example of Parker's First Postmark. Estimate  $500 - 750. The Parker post office was established on January 6, 1871, with John Salt as the first postmaster. $0 (Image)