Can you identify this piece of the stamp?

[Kerijane]

Hi.
I have found this old decorated box clearing out my great grandma's house. Inside was a small decorated bowl, very beauiful around 3 inches wide. I have been trying to identify it or the stamp on the bottom with no luck. Can anyone help? Many thanks

 

[austin]

I think it's Japanese, after WWII. But that's just a guess. Nippon? Modern.