"The letter "L" is carved into the card."
Key Card L is an key item that can be found in Dino Crisis.
First, player must find the two panel keys:
It is given to Regina by a researcher, inside the Chief's room.
It can be found inside the Management Office, next to the dead corpse.
These two panel keys must be inserted onto the slot under the frame. Then, a numeric panel is shown where player must type in the code: 705037, which reveals the Key Card.