One (of two) of the very first Character releases was this 3D 'antique' finish plastic TARDIS keyring. Originally released alongside a gold Dalek in 2005, they were rereleased in early 2006 with the Tenth Doctor on the packaging.
 
The packaging is also reminiscent of the later 5" figure range packaging.
 
Your keyring is still sealed in its original iconic packaging. Please allow for some minor wear and tear as these items are 20 years old.