As in Minimalist's post, the piece does look like some sort of dog. The "bowl" structure looks as if it is designed to pour from the upper part of the image where the "lip" is partially out of the image frame. In the right facing profile, I can see a bearded standing man in the lower part of the image under the "jaw." This looks like intaglio. I also am picking up other carved faces on the exterior among the textural surface carvings. There appears to be a face in the bottom of the bowl that looks human or a human animal combination. Perhaps the hole is for a cord to hang the piece, or maybe where a shaft could be put through to pivot the piece in pouring. Looking at the bottom, it looks like it could be limestone which could explain the porous nature of the material around the rim. It may be useful to inspect the bottom carefully with a lens to see any very small carved subject matter, not to mention checking out the entire surface of the piece.
Folks are skeptical about micro carving as being the realm of the fantast, but I have a feeling that there may be a great deal of subject matter virtually hidden due to its small scale.
There also appears to be some interesting carving on the lower part of the bowl lip at the bottom of the bowl image. This looks like some type of script, though it is unclear what type.
I want to thank you for very informational and professional replay! Really very pleased with your replay.
I took your advice and inspected this piece properly, informational data all over inside on bowl walls, there is some symbols, marks, not very visible, most of them worn off with age or when using this tool, and not very visible (i hope this is not that case when someone looking at clouds in a sky
I do not know what sort of data or script as you said possibly could be inside bowl on a walls, i noticed more human figures and more faces there.
Later on i will post some links to uploaded pictures as forum rules doesn't allow to post quality pictures, and it is not really possible to inspect minor things on this piece..
I think soon enough i will have to find someone who will have pretty much clear idea what "it" can be - and handed in for real,live inspection.
Thank you Sir.