Kingman, Ariz., Registered, Mar 13, 1911 (Mohave), two strikes of violet cds (Meyer 17, rarity 5) on reverse of cover to San Francisco, Cal., franked with target canceled 2¢ + 10¢ Wash-Frank issues, boxed registry handstamp and receiving backstamp, Very Fine, the only recorded example of this registry date stamp. Estimate  $100 - 150. $0 (Image)