Posters on reverse side of TFM instructions?

I can't seem to use the search feature for this place one bit, so sorry for a possible repost.
Don't ask me why, but I was watching a clip on Youtube where some guy was transforming his Deluxe Jazz and at 00:47 you'll see that his transformation instructions have a poster on the reverse side.
Mine is just plain white. What's up with that?
Don't ask me why, but I was watching a clip on Youtube where some guy was transforming his Deluxe Jazz and at 00:47 you'll see that his transformation instructions have a poster on the reverse side.
Mine is just plain white. What's up with that?