Getting 68 Topps 3D graded.PSA or SGC ?
I'm thinking about getting some 1968 Topps 3D cards graded. Cards are very nice on front, some have very small amounts of paper loss on blank backs. Who should I use to grade them, SGC or PSA ? Who is more harsh because of the backs ? Does PSA have higher value as I will sell some of them. Have used SGC in past but never PSA.
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