In late 2007, I think it was, someone introduced aventurine into a run at Jabo. That turned to oxblood. It started a revolution which resulted in some very lovely marbles.
The 2007 oxblood inspired a series of "contract runs". Investors would come together and fund the runs, with the different special kinds of glass which each one had.
So, what you have is from one of those contract runs, and having a labeled package for it, with the date and name of the run ... that is a good thing.
Yes, I would call it "special".