Warren, the Navy does artifacts ships stuff. Here is the site. Its the Naval History and Heritage Command. This is where I requested what they had of the USS Chicago and they sent me some pictures of what they cataloged. Told me also, could have more stuff as they have many warehouses of un-cat stuff. Could be, but who knows when they will get to it. This person did tell me the ships bell is not there.
http://www.history.navy.mil/
A little bit about the 2nd Chicago which was sunk in 1943
USS Chicago (CA-29) Launched 1931 and was a Northampton-class heavy cruiser of the United States Navy that served in the Pacific Theater in the early years of World War II. She was the second US Navy ship to be named after the city of Chicago, Illinois. After surviving a midget submarine attack at Sydney Harbor and serving in battle at the Coral Sea and Savo Island in 1942, she was sunk by Japanese aerial torpedoes in the Battle of Rennell Island, in the Solomon Islands, on 30 January 1943.
Possible like you said, could be from the 2nd ship which some of the shipmates suggested this and some suggested the first one (Great white fleet) but this one was launched 1885 until several decommissions and finally in 1935 it ended.
Like I said, possible when it suck in 1943 this plate could of been taken by a crew member before as a memorabilia, etc. Perhaps the pattern can give a year if anyone can find it? In trying to search for a pattern I seen a Amston silver co that was bought by Ellmore in 1935 and thought I read they used some of there pattens but I am not the expert here.
Thanks everyone as sooner or later someone here to find this pattern. The hunt is on!
Fred