Skull Valley, Ariz., May 16, 1906, Registered (Yavapai), purple straight line date stamp (Meyer 5, rarity 5) on legal sized 1899, 2¢ red entire to Prescott, uprated with 1903, 2¢ carmine, vertical strip of five (natural s.e.) tied by cds's, Extremely Fine, an attractive usage of this registry handstamp, the only example recorded. Estimate  $150 - 200. $0 (Image)