[Archive]

Posted By: G. Maines

Yes, Jerry H.
I considered a nominal equivalent to PSA7 in my estimate. Your question was not directed at the extremes, so that seemed reasonable.

But seriously, it does not matter what data analysis technique you use when there is such limited data. Perhaps Eric's suggestion of using the t206s is a good alternate approach. The trick is always going to be to accurately estimate the number of cards which survived in an "under a PSA7 equivalent" condition.

It would be very interesting to compare numbers for Goudey, t206 and Old Judge.