When I was the artist in residence at the LA maritime museum I was asked to do a model of a 15"50 caliber navel rifle from the IOWA class battleships, we happen to have one which the museum received from the Navy, the model of the gun was going to be presented to the founder of the museum Mr. I Roy Coats , I made a mold and some castings of the gun. here is one of them.
The location of the real gun is below.
https://www.google.com/maps/@3...Q!2e0!7i16384!8i8192