Off topic and picking at nits, here are the photos I promised.
Example one is a regulation 1897 USN officer's service coat (Navy Department, Washington, D.C., July 1, 1897). This pattern service coat was retired shortly after the First World War and replaced by a double breasted sack coat.
http://www.grandarmyofthefrontier.org/uniforms/usn1897.htm
The five pointed star positioned at the apex of the sleeve rank indicates a Captain of the Line, though the bullion fouled anchor devices are missing from the collar. The ribbon bar comprises the Nicaraguan Campaign Medal, Mexican Campaign Medal, and Victory Medal (all authorized for wear through World War One).
http://www.naval-reference.net/uniforms/ww1/ww1_ribbons_1.html
The collar insignia of rank (equivalent to an U.S. Army full Colonel) are matched (both eagles face forward as do the olive branches). Does this contradict the argument regarding "War Eagles?" It's far from conclusive, but it does support the apparent lack of a manufacturing standard .
Example two, also a line Captain, is complete. Note the collar rank and orientation of the arrows/olive branch.
For further reading, I recommend:
http://www.naval-reference.net/index.html
Chas.