It's complicated because there is definitive proof that the sheet layouts changed during the T206 printing and more than likely the size of the sheets also changed.
Some of the sheets had the same vertical subject from the bottom to the top of the sheet while other sheets were split with the same vertical subject on the first half
and a different subject on the other half. The biggest vertical plate scratch sheet is 12 T206's high with the same vertical subject from bottom to the top of the sheet.
Knowing that we know that some sheets were at least 12 T206's high (or bigger) so there were at least 12 verticals of the same subject on some sheets while some of the other
sheets were at least 6 verticals of one subject and 6 verticals of a different subject.
This is just my opinion how the sheets were printed for each print group
Print group 1 150/350 subjects were printed two different ways some sheets with the same vertical subject used and some sheets that were split 50/50.
Print group 2 350 only subjects were printed on split sheets with the possibility that some sheets were printed with the same vertical subject on the whole sheet.
Print group 3 350/460 subjects same vertical subject sheets only
Print group 4 460 only subjects same vertical subject sheets only
Print group 5 super prints split sheets when printed with print group 2 350 only subjects. Full sheet same vertical subjects when printed on print group 3 & 4 sheets.
Print group 6 Southern Leaguers Split sheets and a slight possibly that some sheets were printed with the same vertical subject on the whole sheet.
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