A tiny ink stamp near the set symbol is the reason some of the earliest Pokémon cards sell for many times more than cards that are otherwise printed identically.
How it began
When Base Set launched in January 1999, Wizards of the Coast marked the very first print run with a small "1st Edition" stamp, distinguishing it from the standard "Unlimited" printing that followed once the initial run sold out. The stamp reportedly continued onto the next few English sets — Jungle and Fossil among them — as the same launch-then-reprint pattern repeated.
Why it didn't last
As the game's popularity stabilised and Wizards of the Coast settled into more predictable, larger print runs, the practical reason for stamping an initial run reportedly faded. The stamp disappeared from new sets within a year or two of its introduction and never became a permanent feature of the game's printing.
A closed, historic category
Because the stamp only ever appeared on that early run of sets, First Edition cards form a fixed, un-reproducible category — nothing printed since carries one, and nothing ever will. That permanence is a large part of why grading companies and collectors alike still treat a First Edition stamp as one of the clearest signals of a genuinely early, historically significant Pokémon card.
Frequently asked questions
Which sets actually carry a First Edition stamp?
Reportedly only a handful of the earliest English WOTC-era sets, starting with 1999 Base Set.
Why did Wizards of the Coast stop stamping First Edition cards?
Once demand and print volumes stabilised, marking an initial run reportedly stopped serving much purpose.
Did the First Edition stamp ever come back on later cards?
No, it stayed unique to that early handful of sets.