Dark Blue Man fishing Snuff Bottle

This is from the same collection as the other blue and whites, and one good thing I've done is tend to buy a lot from the same collector. I figure since I don't have the expertise, that they do, and so every bottle in their collection is probably worthwhile.
This one doesn't have a mark, but I will do more research to try to find out when it was made based on the shape, the color, etc.
It has a nice tiger's eye top and the painting is very well executed.