VGFacts

The Gameboy camera had clipart containing the Green and Red version sprites of Bulbasaur, Charmander, Squirtle, Pikachu, Meowth and Mew.

The Gameboy camera was released in North America June 1, 1998.

Pokemon Red and Blue versions weren't released in North America untill September 30, 1998.

"The Game Boy Camera had several images of Pokemon, and released almost 4 months earlier than Pokemon Red and Blue in North America, making the Game Boy Camera North America's Pokemon debut."



http://tcrf.net/Game_Boy_Camera

https://en.wikipedia.org/wiki/Game_Boy_Camera

https://en.wikipedia.org/wiki/Pok%C3%A9mon_Red_and_Blue

I've updated your post to have more evidence, and I've edited the trivia to be more accurate.

sweet