Japanese egg shell tea pot

[Stan]

Here is an interesting find at an antique shop, the hight is 13.9 cm tall and is very thin, it is all hand made and hand painted, there is a mark, I am hoping that someone will recognize it, I could not find anything on the internet or in my books, thanks for any help, I think that this would date to 2nd half of the 20 century but could be a little earlier I think, any help of identification would be appreciated, thanks for viewing.

[Stan]

Here are the last photo's to view, thanks again.