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Crossovers - overestimating the graded populations?

Crossovers - overestimating the graded populations?

Do the PSA and SGC population reports overestimate the true population of graded cards?

Baseball, Grading, Investments, PSA, SGCGregory PopeMarch 6, 20191910 Tip Top Bread Honus Wagner, Vintage Baseball Cards, Vintage Cards, Honus Wagner, PSA, SGCComment

PSA Quality Control Issues

PSA Quality Control Issues

How did PSA let these holders with wrinkled plastic out of their offices?

Golf, Grading, PSAGregory PopeSeptember 21, 2017PSA, Graded Cards, Jack Nicklaus, Golf, 1971 Barratt & Co., Famous Sportsman, Vintage Cards Comment