My Little Pony Vintage G1 3d Stand Up Moonstone Jigsaw Puzzle

Rare jigsaw puzzle produced for the USA market. This 3d puzzle is double sided so you can make a flat image or a 'figure' of Moonstone.  

We built the flat image to check all pieces there - they are plus an extra piece! Unsure if that's for the 3d puzzle so we have left in the box.

As seen in photo there are some surface marks to the pieces.