What's this?&how much is it?

[mrbubbles]

There was info shared by an E4 member:

Similar looking Japanese releases & release years

The two “My Deck Memo cards” were released in 1997. My Deck Chansey Memo card was included in Vol 2 of the original Japanese Fan Club Magazine(released Sept 5, 1997…The other My Deck Memo card was included in a white Fan Club carrying case released Nov 11, 1997. You can see the dates for the magazine and carrying case if you go to pages 338 & 339 in the Japanese Guide Book 2000(Silver Bible). The book doesn’t show the cards, just the magazine and carrying case with release dates.

I see some of them still on a 100-150USD price range on Mercari JP. Hope this info helps.

Cheers!