A SEALED POKEMON BASE SET BLACK TRIANGLE ERROR PRINTED BOOST Pacchetti Black Triangle Pokemon Wizards 1999 Base Set Black Triangle Error Booster Pack Set PSA 10 The very first expansion to be released for the Pokmon TCG was Base Set (Expansion Pack in Japan), and in front Unboxing Rare Pokemon Base Set Black Triangle Error Pack A SEALED POKEMON BASE SET BLACK TRIANGLE ERROR PRINTED BOOSTER PACK, with two other sealed Base set 3 Pokemon Base Set Black Triangle Error Sealed Booster Packs READ DESCRIPTION!!! #1692658622