Vintage Japanese Ceramic Glazed Enameled Vase Base with Maker's Mark

The item captured in the image is the unglazed bottom of a vintage ceramic vase, specifically highlighted by the user as a 'Vintage Japanese ceramic glazed enameled vase'. The base is circular and exhibits a rough, unrefined texture, characteristic of unglazed fired clay. Its color is a mottled beige and light brown, with noticeable darker specks and areas of lighter discoloration, which could be signs of age, handling, or residual firing impurities. The surface is uneven, showing slight indentations and raised areas, particularly around the outer ring which serves as the foot or base rim. The most prominent feature is an impressed mark, likely a maker's mark or signature. Interpreted from the image, these appear to be two initial-like characters, 'TH' on the left, and a single 'H' on the right, deeply incised into the clay before firing. This level of detail suggests a deliberate, possibly hand-incised mark. There are no visible chips, cracks, or repairs, though the natural rough texture and patina make it challenging to ascertain minor surface imperfections. The overall appearance is consistent with older ceramic pieces where the base is left unglazed to prevent sticking during firing and to provide stability. The craftsmanship indicated by the intentional unglazed base and the impressed maker's mark points towards a piece that was either studio pottery or from a small, artisan workshop, prioritizing utility and maker identification. The condition appears to be consistent with its age, showing a natural patina without significant damage.