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Posted By: JimCrandell

A look at 10 different sets picked randomly finds some significant differences in the percentage found in PSA high grade. The results are as follows:
Set PCT Graded in PSA 8 or Better
1887 Old Judge N172 4%
1887 Allen & Ginter N28 9%
1915 Cracker Jack 27%
T205 1%
T206 3%
E121 American Caramel 4%
1933 Goudey 9%
1939 Play Ball 23%
1952 Topps 14%

Would be interesting to see SGC numbers. Sample size is large for most sets. For example 80,797 T206 and 41,000 1933 Goudey.

My conclusions are:

1)Pct of PSA 8 and better is still very low in most prewar sets
2)1915 CJ is almost off the charts high(explanation?)
3)T205 psa 8s or better are exceedingly rare. In fact, only 4 psa 9s and no 10s on a total pop of 17,226.