Copies are matched across platforms by set, card number, and language (registry v1 — exact normalized matching). FMV figures combine licensed market data calibrated against observed sales, provided as-is.
0 copies for sale
1997 (Only One Pokémon) Original Series #137 Porygon - (Blue Back) 1st Print (CGC 7 NM)
$23.40USDC
CourtyardPolygon