This officer appears to be either German or Russian. Worth the research!
CDV – Foreign Officer Serving During the Civil War. The best I can come up with on the name of this Foreign officers might be Franz Rascher Lieutenant, 1st Dragoon Regt., Germany – Russland (Russia)? He is wearing an American eagle belt plate; holding a Meerschaum pipe.
Period ink ID.
Photographer; Julius Brill, New York.
From the Michael McAfee Collection.