Let's see the bottom and the inside of the lid.

Thanks for your reply - much appreciated ! It is about 12 inches. The entire set is ‘dainty’ it has 6 cups/saucers, cream and sugar setting as well. Do you know anything about the history of it? I thi

I do not think there is anything under the lid...

I do not think there is anything under the lid...this a picture of the bottom of one of the cups - the pot has the same marking

This is the inside of th tea pot lid

It's a Coffee set...demitasse. by the mark most likely made pre 1940, as after most were marked "made in Japan" and after 1921 when it may have been marked "nippon".
Decal decorated and by the figures likely made for the American market.