Thrift shop find - Can somebody say something about this pot / cup?

[ShimpakuBonsai]

Another thrift shop find today.
A small pot / cup with a small painting on the front and back of the pot.
Height: 4,3cm
Diameter: 5,2cm
No drainage hole
Stamp on the bottom

Can somebody say something about this pot?

Thanks in advance for your help.

 

[19Mateo83]

It looks like it may be a saki cup. Good find!