New to Yixing-Please help identify this tea pot

[thriftstoremom]

Hello,
New to this forum. From sunny California USA.
I bought this little teapot and cups from a thriftstore thinking it might be a fun little set for my daughter. Upon closer inspection, I don’t think it’s a childs set.I am hoping to find more information about the teapot age and possible artist?! Thank you so much in advance.
The teapot has one stamp in the lid and another on bottom. The brown cups have a different stamp than the teapot, although I believe all cups go together.No stamp on the rock/clay looking cups. Anything positive to help my search will be appreciated. I will resize my photos to upload.