Unidentified photographer / artist, n.d., #2059 Cannon on the Battlefield of Bull Run, [Army of the Potomac], Stereocard, Jefferson Stereoptics, LL/11708
Unidentified photographer / artist n.d. #2059 Cannon on the Battlefield of Bull Run [Army of the Potomac]
Stereocard Jefferson Stereoptics Courtesy of John Saddy (Auction, Tues. May 23rd & Thurs. May 25th, 2006, # 06-2, Lot 179)
