Rare Pokemon Black Triangle Error Packs Revealed Just found this unopened error black triangle pack in my old card collection. Was considering getting it graded but was curious if anyone could explain what the difference is between a PSA 10 and PSA 9 unopened pack? There's no rips or anything, but the Have you EVER seen one of these?! , Check out multiple Variations of Pokemon Base set Including the Black Triangle Error Box!, #pokemon #pokmoncollector #pokemoninvesting #vintagepokemon 1999 Pokemon Card Game (TCG) BASE SET Black Triangle Error Stamped EMPTY Packs eBay Base Set Black Triangle Error Booster Pack Unboxing Rare Pokemon Base Set Black Triangle Error Pack