There is an INSIGNIA on his shoulder. I don't know about Military and I DIDN'T RESEARCH. ID'ed Civil War Soldier PHOTOGRAPHS.The item "ID'ed Civil War Soldier CYRUS DETRE 88 P. PA TAX STAMP 8.13 1864 CDV Photo" is in sale since Thursday, November 11, 2021. This item is in the category "Collectibles\Photographic Images\Photographs". The seller is "xxxmas" and is located in Hempstead, New York. This item can be shipped worldwide.