1999 Pokemon Base Set Blastoise Black Triangle Error Booster Pack PSA 10

This 1999 Pokemon Base Set Blastoise Black Triangle Error Booster Pack is a rare error variant, professionally graded PSA 10. It is a highly collectible piece of Pokemon TCG history, especially sought after by error collectors. While the pack itself is unplayable, it represents a unique addition to any serious collection.✦ AI summary