The 98s with blue and brown when the brown is close to that shade is pretty close and I totally understand thinking they could be a match, but the swirl patterns of the brownish color in the marble in question along with all the striations in the blue color separate it from being a JABO IMHO. In the large photo one can make out a three repeat flame like pattern (but no tips) and that basically doesn't happen in most classic 5/8" JABOs. By the way, high five for correctly dating the closest JABO to the marble in question. Respect.