Antique Chinese Vase / Urn

The attached images are of a Chinese Vase, which has been in my family for what I'd assume is over a century.  The vase belonged to my great grand - father, and when he was younger his grand parents would travel the world and send items back to his parents.  Items such as an antique grand father clock, and a large music box.  The vase, however is the one item we know nothing about.  I've searched the internet for years, and have never seen another one like it.  

I'd love to learn ANYTHING about this item, what it is, who's the artist, and of course the item's worth as this has been a family debate for decades now.  

Any help would be greatly appreciated!