[KingKongBundy]

I took a look at the 1970 Topps population report for PSA 10 graded cards. As of today, there are 1414 PSA 10 graded cards out of a total population of 147485 1970 Topps cards graded by PSA.

In the OP's post, I counted 52 1970 Topps cards that received a 10 and I assumed that out of the cards that didn't get assigned a 10 in the submission, 3 of those cards were 1970 Topps.

As such, it would be interesting to calculate the probability that out
of 55 1970 Topps cards submitted, what is the likely-hood that that 52 would be graded PSA 10 assuming 'everything being equal'.

(Back of the envelope calculation ~ 10^-101).

Basically, you have a better chance of winning the powerball lottery 11 times in a row than receiving the grades received in the submission for the 1970 submission alone.

Charles