Posted By:
Bob LemkeThe numbers in parentheses for the 1955 Topps stamps are just a convenience; perhaps if I was doing it over today, I'd use the actual card numbers parenthetically.
I believe there were more than 24-25 players produced in this test format. I once took a photo of a First Series 1955T sheet and X'd out the known stamps.There are many gaps and holes left on the sheet. If you assume that the original First Series card plates were used on stamp stock to create these test items, then there are many more players to be found. A big unknown is whether the size of the stamp sheet corresponded to the size of the normal cardboard sheet.