I acquired this several years ago in a trade deal with a museum. It had been sitting in their storage area for years and no one there knew what it was, nor where it came from. It did not fit their collection criteria, which was WWII. I have made attempts off and on over the years to try and figure out what it is, without success. The entire body is made of stainless steel. It does have "guts" in it, which I believe are electronics, but have not been able to get it apart. The rear four pieces look like rocket nozzles, but they are not. One of the nozzles has a multi-pin plug port for attaching some sort of electronic cable. It very well could be missing parts/sections from the rear, or maybe it's not, and it is a test model (wind tunnel?). It is pretty heavy........maybe about 100 pounds. The pics that I've attached illustrate what I am trying to describe, as well as the dimensional details. The only rocket/missile that fits within the 274mm diameter (that I could find) is the MLRS, but I don't think this is related to MLRS. If anybody can help, I would love to solve this mystery! Thanks in advance!!