Unidentified photographer/creator Untitled image showing two men at a studio portraiture sitting n.d.
Stereocard, detail Jefferson Stereoptics Courtesy of John Saddy (Auction, Tue, Dec 12, 2006 & Thu, Dec 14, 2006, # 06-4, Lot 78)
Some markings on back have the date 1860. Though the pen looks early, I think it is not Period, as I believe the view with its apparently original round corners on the mount is at least five years later than that. (John Saddy)