FRESH AND VERY FINE MIXED-FRANKING PRISONER-OF-WAR COVER SENT VIA THE OLD POINT COMFORT AND RICHMOND FLAG-OF-TRUCE ROUTE.
Camp Chase was first used from July 1861 to September 1862. It was reopened for prisoners in 1863 and remained in use until the end of the war. The prison population reached a peak of 9,000 in January 1865. Southbound mail entered the U.S. mails at nearby Columbus, and the C.S.A. mails at Norfolk, Petersburg or Richmond. One type of examined handstamp was used during the via Richmond period, with three sub-types. Lieutenant Colonel Poten assumed examination duty in November 1863 and initially used manuscript endorsements. The volume of mail, however, led to the creation of a handstamp in January 1864. When Poten was replaced in March 1864, the handstamp was modified by the removal of "Poten" from the device. It was further modified in August 1864 by the removal of additional letters, as in this example
VERY FINE MIXED-FRANKING PRISONER-OF-WAR COVER FROM CAMP CHASE, SENT VIA THE OLD POINT COMFORT AND RICHMOND FLAG-OF-TRUCE ROUTE.