Unidentified photographer
1859, 11 June
Philadelphia Grays at Niagara Falls

Ambrotype, whole plate
Internet - Original source ill-defined
Posted by R.J. Ferry to the Facebook "The American Civil War Collectors" Group.
 
This image was offered at the DC Photo show in 2015 by the Virginia dealer and photo historian Cliff Krainik. (Wes Cowan, Facebook, Victorian Images group, 10 June 2016).
 
LL/67560