The photographer has used his artistry to place an army officer into the image twice in different poses.
The photographer of this image showing an infantry officer looking down at himself is the artistry of the firm Black & Case (formerly J.W. Black), Boston, and the Naval Academy, Newport, R.I.
The subject is unidentified, but clearing the same individual. Not a commonly seen Civil War carte de visite.
Very good condition, missing the revenue stamp.
From the Michael McAfee Collection.