CoroCoro Jumbos

[Daelum]

Hi,

So over on another forum, a few members were discussing how to tell whether an old Japanese CoroCoro Jumbo card was fake or not. The only difference that was presented between real and fake cards was that light shone through one, while it didn't for the other.
However, no one knows which indicates if the card is fake and which indicates if the card is real.

So, I am asking for anyone who has any information on how to tell a fake CoroCoro Jumbo apart from a real one to post here. It is really important not only to me, but to the rest of the Pokemon community that owns these cards.

Thanks to anyone who can help out.

 

[PokePhD]

I actually had a bunch of the CoroCoro Jumbos until I sold them to a lucky fellow here on PokéBeach.

I know on some older JPN cards (and more recent English/JPN cards), light does shine through the fake ones but not real ones.