CAMP CHASE OHIO: US 65, 3¢ rose tied COLUMBUS O NOV 17 duplex on neat cover to Milton E. Smith Care Geo. P. Weiser Frederick City Maryland with scarce manuscript “Approved Lt Col Poten” early Poten censor marking used only November 2, 1863-January 12, 1864 (per Harrison) by Lt. Col. August H. Poten, 7th Regiment Invalid Corps, before he ordered a handstamp to make his job easier. Ex Matz. $500.