go to the Jouster website: www.jouster.com
and scroll to the service pistol forum and post what you there.
There is poster who is a collector of the early Navies and should be able to give further info.
Some shows that I have viewed his collection, the 1911's issued to a vessel would have an "ID" above the trigger on that open frame area.
One he had was marked: "BB-39" U.S.S. Arozona