Quote:
Originally Posted by Kevvyg1026
The XP designation rather than DP designation does seem more appropriate for cards issued from 1959 to 1968. For example, the first series printings from many of those years contained 109 unique cards printed in ten unique rows across the 264 card sheet (24 rows of 11 cards each). The unique card number is 109 rather than 110 because the 1st checklist was printed in two different rows.
This printing meant that four rows were printed 3x each (12 rows) and 6 rows printed 2x each (12 rows). Sometimes, price guide refer to cards printed in the rows printed 3x as DP when, in fact, they are only 1.5x, e.g., Mantle in 1966.
Obviously, some of the earlier print runs (before 1958) may have contained the same card printed in different unique rows, so the DP designation could apply. Same thing goes for releases like the 1964 Topps Giants.
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EC for Extra Checklist? I do think the delineations matter in some ways, just never seen much beyond SP and DP over the years.
Agree DP and XP could mean two things, OP as well for Overprint like that row in 1967 that begat a zillion cards.