Stone Glazed Pottery Jar with Lid. Rich blue interior & exterior. Shiny

Stone Glazed Pottery Jar with Lid. Rich blue interior & exterior. Shiny & smooth glaze. About 5 1/2” with an open diameter of 3 1/4”. This pottery does have a signature on the bottom…: but my eyes can’t make it out. Unfortunately, I don’t know the maker. Beautifully done. No seen flaws