I just wanted to thank everyone for their input, I've learned a lot. Unfortunately, these are very rare and there is not much info on them. I did read somewhere on the internet that not all the trial guns were in the 288,000-290,000 range, but you can't trust everything you read on the internet! Like butlersrangers said, I wouldn't be surprised if someone at SA had the piece of mind to see how it worked on an 1896.  So it can be documented, the serial # of my rifle is 95329. Thanks again :)