Togepi Egg .

After entering the Hall of Fame and obtaining the Rainbow Pass from Celio in Pokémon FireRed & LeafGreen,
players can go to the Water Labyrinth at Five Island and receive the egg from a gentleman when the lead in your party has high friendship.

The international eggs will have the nickname タマゴ and language set to Japanese, and it doesn't show in-game.
The data below refer to encounter itself, not the file.

 

 

Species		Togepi (EGG)
Nickname		(default, save lang)
OT		(recipient)
TID		(recipient)
Distribution		In-Game Gift
Location		the Kanto region
Dates		(Various)
PID		Chance of Shiny
Games		FRLG

	Lv. 5

Nature		Random
Ability		Hustle (1)  or Serene Grace (2)
Item		None

Moves   (ITALIC means Relearnable)   Growl   Charm   Metronome   (None)

Format Ver.1.0.6-1, Post Updated Date:20180203_2354