A quick contribution to calling out reprints --
This seller has been selling some interesting early photos; but this one has red flags, notably that it is an 1870s image on an 1880s/1890s mount, the wear on the photo doesn't match the wear on the mount, and most important, the image comes from a CDV sold in a Cowan's auction in 2005.
http://www.ebay.com/itm/SPECTACULAR-...-/381281653706
http://www.cowanauctions.com/auction....aspx?id=23928