Topsun Seal Gum Johto

This Shuckle sticker came with a piece of gum in 1999. It's a quite rare sticker, I think it's the oldest of these square Japanese stickers featuring Shuckle. It has a really nice artwork with Shuckle chilling on a nice-looking beach!

Some other stickers in this set have a second variation that's subtly different so there might be one for Shuckle too, but I've never seen one.

Unless I'm mistaken, it's the same manufacturer as the Topsun cards. It seems the manufacturer is called different things in different by different people: Toppu, Topsun, and Top Seika(?). The Japanese name seem to be トップ or トップ製菓.