The Pokemon TCG Base Set Impostor Professor Oak 73/102 Shadowless Trainer card is a rare, vintage collectible card from the Pokemon franchise. Manufactured in 1999 by The Pokemon Company in the United States, this English-language card features Professor Oak as the character illustrated by Ken Sugimori. It is part of the Base Set collection and is made of standard-sized card stock with a regular finish. This Trainer card is a sought-after item for collectors and fans of the Pokemon Trading Card Game.