Hand-thrown ceramic bowl with two-tone glaze

This is a hand-thrown ceramic bowl featuring a rounded, footed profile and a contemporary glazing style. The vessel exhibits a dual-glaze application, where one section is finished in a high-gloss near-black or deep charcoal tone, creating a sharp contrast against a muted, matte gray or slate-colored interior and body. The rim is clearly defined with a thin, unglazed or differently colored line, suggesting attention to detail in the finishing process. The interior shows subtle concentric ridges or throwing lines, which are consistent with wheel-thrown construction. Regarding the owner's note of an etched 'KJM 2012' on the bottom and a 'thick letter K' above the base rim, these markings are not visible in the provided image and therefore cannot be verified. Such markings are typically consistent with contemporary studio pottery or an artisan maker from the early 21st century. The glaze appears consistent, with minor textural variations that are common in handmade ceramics. Condition appears to be good with no obvious chips or cracks visible from this angle. Identification as a specific maker's work remains a hypothesis subject to in-person inspection of the mentioned signatures.

Based on my visual review of the image and the information provided, this is a contemporary hand-thrown ceramic vessel featuring a distinctive two-tone glaze. Per user submission, the piece is attributed to a maker identified by the marks 'KJM 2012' and a 'thick letter K.' While the throwing lines and glaze application I see are consistent with studio pottery from the early 21st century, I cannot verify the existence or legitimacy of these marks from the provided image alone. The value estimate of $150-$250 assumes the piece is a genuine work by an established regional artisan maker as indicated by the owner's notes. Generally, market demand for contemporary studio ceramics is driven by the reputation of the maker and the aesthetic quality of the glaze. If the attribution to 'KJM' cannot be substantiated through a physical inspection or if the piece is found to be the work of an unknown hobbyist, the value would likely decrease to a range of $40-$75 as a decorative object. I am unable to determine the presence of internal stress fractures or microscopic rim chips from this angle; a physical examination would be necessary to confirm the structural integrity. To confirm the origin of the piece, I would recommend an in-person inspection of the base markings and a comparison against known signature directories for contemporary potters. Until such verification occurs, this appraisal remains a hypothesis based on the provided data.