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Hi Bill
Sorry, but I don't trust any data that suggests that the population of cards #'s 171 - 180 is equal to cards #131 - 170.
As we know....on a typical 100-card sheet (any series) of 1952 Topps cards, 4 rows are Double-Printed and 2 rows are Single-Printed.
Cards #171 - 180 and cards #181 - 190 were Short-Printed. This is true regardless of whether they were White-backs or Gray-backs.
I have collected 1952 TOPPS cards and filled customers want-lists for them for 40 years, so I've had a lot experience with these gems.
Especially with the Billy Martin card. Every Gray-back Billy Martin card I have had, has instantly "flown off" my table at BB card shows.
In fact, many years ago, dealers were paying me on the average of $400 for this card (irrelevant of its condition).
TED Z
T206 Reference
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