Most Interesting Base Set Errors From Vintage Pokemon TCG Cards PokPatch Introducing: PSA's official Pokmon Error Guide Ink stains, incomplete holos, ghost stamps and beyond are treasures in their own right. PSA recognizes 30+ errors, and this guide should help you hunt Have you ever seen an error Pokemon card like this? , #pokemon #pokemoncards #pokemontcg Introducing: PSA's official Pokmon Error Guide Ink stains, incomplete holos, ghost stamps and beyond are treasures in their own right. PSA recognizes 30+ errors, and this guide should help you hunt