Maybe they were short a top and got one from the CA-100 stack?
Label may be a clue. It looks like it is marked "Spruce Bl", though the label does appear to have overspray on it.
I just saw that it appears to be for sale in Belgium!is it for sale?
Here are a few more pictures from the add in Belgium: Tuners were replaced and no case anymore, comes with a softbag. The top might have been oversprayed. He asks EURO 2.300 or minimum bid starts at EURO 1.850.
Ralf