Piece is about 5 inches tall and 6 inches wide. I'm not a pottery expert but it seems to be ceramic.
This piece was passed down from my great great grandmother but I don't know where she acquired it from.
Dear Andrew,
What you have here is a Chinese pot made for Korean market. Its soft paste export porcelain. Soft pate porcelain means it is porcelain but baked on lower temperature with a different proces. Your pot is made in first half 20th century. Mark is hard to read but in many cases not very important; its not saying anything about maker or period in 99% of the cases. Nice pot and a family piece. Its not worth very much but its an honest piece of ceramics made for daily use.