Coco Cola bottle ashtray

This is an ashtray. It seems to be of ceramic. It is 6 1/2 inched tall by 2 inches wide at it's widest point. The word Coca Cola writing is raised and it is also on the reverse side (seen at the top of pic #3). The symbol on the back seems to be painted in a gold paint with the word Germany under it. The picture at the 'ash' collector part of the bottle is orange in colour and is a farm scene with a windmill. The only thing I know about this bottle is that before my mother in law gave it to me, it was given to her by her father who lived in Guyana, South America. He did have a variety store and there is some theory that he might have gotten it from a sales person who brought Coca Cola to the store. But that is just a theory. If anybody out there can help me with finding ANY information about this item, I would truly appreciate it.