No problem.
218p - 1999 Pokemon Snap Album Promo Sticker Sheet
Seems to have came with an album (when new) to hold Pokemon Snap photos as a promotional item. Your Starmie one matches the top-right.
You would paste the stickers inside the album on this template, it seems.
Most eBay listings seem to list it as 1999, likely due to the latest copyright year listed at the bottom being 1999.
I do not yet have a manufacturer.