I came across a puzzle that has the really old spine design around the edge and has a photo of the Tootle cover on the front, only without the "Tootle" title in the cloud, (It is just a photo with no writing). I can't find this in any of my guide books. I thought it may have gone in the back of a puzzle book, except it has straight edges and I think those are curvy to fit in the tray frame. Anyone seen or heard of this puzzle?? It looks pretty old... Thanks!!