I was at Jabo for about 60-100 investor runs, start to finish. I was a investor in at least 60 of the runs. I was at Jabo many days, nights and years before the special investor runs began. I know where the tubes came from. Most of those came from deceased Danny Sink in VA. I bought several 3/4 inch tubes from him, as other collectors did. Steve Smith of OH(Smitty)did the Eagles run. There are several million marbles similar, just Jabo investor runs, similar to that but not exact. Depends on what similar is ? We usually ran about 2000lbs. at each Jabo investor runs. Some were double that. We did it from 2008 until about 2019 or 2019. Some early years had four runs and some years had 10-15 runs. Each run had hundreds of different color combinations. Some had aventurine, some had lutz, many had oxblood, some had frit added, on and on. If you have a marble near 3/4 inch and it is a swirl with lots of colors and or sparkles. It is about 95% chance it is a Jabo special investor run made at Reno Ohio.