Diaclone Devestator Background

In case you didn't know, and because I am BORED, here's a small scan of the backdrop that comes with the Diaclone Devestator gift set. 

The billboard in the distance for some reason has the word SEVEN, and there is one other in Japanese (have no idea what it says)

The set also came with cardboard gurders that one could arrange to make a building's scaffolding.  Also a plastic raised gray landscape and little clear plastic sand like pellets. 

here's what it looks like all together. 

I still was positive when I was a kid that Devestator came with a extra silencer that fit over the main gun barrel to make it longer...but it was probably a broken gun piece in a carded constructicon I remember seeing.  Since there is no evidence it was ever part of the Diaclone line, then it did not exist.