Posted By:
Joe P.http://www.oldcardboard.com/r/r448/r448.asp?cardsetID=905
It's a start.
If you have waited three years, and you're near an area where you might find a large major sports collectors show - why not go there yourself.
Card graders are sharp (pun intended) in detecting corners and sides, but I wouldn't put my last centavo on them when it comes to knowledge and detection of all cards.
You seem to like research, and I applaud that.
Follow your instincts and seek out dealers that may have a background in that particular area.
If it's possible, that would be at a large show of over a few hundred tables.
Jose P.