Authentic US copy of Pokémon Emerald for Game Boy Advance — not a reproduction.
Translucent green cartridge with the correct holographic label (AGB-BPEE-USA).
Battery has been replaced, so clock-based events work like they should.
Tested: boots right up, starts a game, saves, and the save holds after powering off and back on.
Photos show the front and back of the actual cartridge, including the board through the shell.
Local pickup in Cincinnati, cash. $225 firm.