This was recently found but we have not been able to make a positive ID. It is a metal body missing the fore and aft end. The body has a welded seem that runs the full length. On the fore end there are two bolts that hold a small odd shaped metal block on the inside. The aft end has four holes equally space around the ring protruding from he aft end. The ring inside the aft end is castlegated. There were no marking found anywhere.