There are two printed versions of Shadowless cards – first editions can be identified by the First Edition symbol under the bottom left corner of the art, while second editions, while still Shadowless, do not have the same mark.
This is the one that regularly makes the news, with some auctions for it going up into the hundreds of thousands for a verified pristine copy. Of course, there's no Pokémon card that is more sought-after than a shadowless Base Set Charizard. #1 – Base Set Charizard (Shadowless Holo), $2032 This is a first edition print, identifiable by the stamp to the.