The set also contained Double Colorless Energy, the first special Energy card. The original base set was the only set that didn’t contain a set logo or symbol and included the first special edition energy card, Double Colorless Energy. It is the only set and expansion so far not to have a set logo or symbol (with the exception of the error “no symbol” Jungle set cards). It is one of few sets to include Fighting, Fire, Grass, Lightning, Psychic, and Water Energy cards, now commonly known as basic Energy cards. The original Pokemon base set was released in Japan in 1996 and later released to the US in 1999 and was the first original English base set after the demo pack with the collection containing 102 cards. It is based on Pokémon Red, Blue, and Green, featuring Generation I Pokémon. The cards are Shadowless, making them considerably valuable to collectors and worth quite a bit of money.
1999 Pokemon Trading Card Game Base Set List