Charles Manson 4" x 9" pre addressed mailing envelope sent to Manson by a longtime and trusted friend during the time that Harnden and Manson were next door neighbors in the SHU at Corcoran State Prison.
 
Jeff Harnden has crossed out Manson's name in the upper left corner and signed his name, Jeff S. Harnden before sending this back to Manson's longtime friend. Rare.