Quote:
Originally Posted by deweyinthehall
Question - Is each different number associated with only a single letter code before and a single three-letter sequence after it?
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Yes. 12345-12410 are A ABC 12412-12477 are B BCD 12479-12544 are C CDF and 12546-12611 are D DFG 12411, 12478 and 12545 are the card numbers that don't exist and they fall in between the changes from A-B-C-D lettering.
91 Topps Instant win A-D.jpg