Ceramic mouse snuff box

Hello

Here is my first post lockdown mystery.
A ceramic box in the shape of a mouse, with a carved image of more mice underneath. I'm not sure what you would call the ceramic, it looks grey with brown/black flecks, all glazed except for the inside of it's ears. Base metal, I think once silverplated mount/hinge.

I have found other 'normal' looking painted porcelain mouse snuff boxes online but nothing like this.

Measures 7cm width, 4.5cm depth, 4.5cm height.

Thanks for looking

 

neat..........

 

Some type of carved stone?

 

I considered it but I'm sure it's some sort of ceramic. I looks very clay-like