Medium gray clay. Flat base trimmed concentrically, edge beveled. Single hoizontal groove incised around midpoint of body, partially hidden by glaze. Iron glaze stopping above foot on outside, just below rim on inside; color ranging from mahogany brown to opaque rust brown where thick, with iridescent surface; splashed with large patches of ash glaze that appear translucent amber, crackled; iron slip on outside wall below glaze, base, and interior. Glossy crescent-shaped area on base where piece rested on rim of larger jar.