I’m assuming there are cards prefixed with J and L. If anyone knows what these cards are I’d love to know!
Other than the English Sample Set cards, the Japanese Space World sample cards also feature an e-Reader serial number. Unfortunately none of the pictures in @quuador 's Pokémon TCG Picture Dump thread are clear enough to work out what the prefix is. This is probably the clearest picture:
If anyone knows what that one is, I’d love to know. My guess is that it’s either B, E, F, R or Z.
Update: It’s an R. It says R-06-# on the Game Boy Advance screen.
