Sealed 1999 - 2000 4th edition pre-constructed theme deck box

Hey all,

I think ive managed to get hold of something special. I have seen both normal and shadowless pre-constructed theme deck boxes before but never come across a 1999 - 2000 one.

After digging deep on the net; searching forums, youtube videos and famous collections I am unable to find another one of these.

Have any of you seen one before or do you own one? I am very keen to find out how rare these are and what the estimated population count is.

Absolutely stoked to have it in my collection!

Added another picture as i could only post one in my intial post due to being a new user!

Not 100% sure if this is the same thing but this thread might be relevant

Base Set Decks 1999-2000 date