I had by the past an inkwell with same orogin abd verey similar pure geomtrical design (please check last photo of this page). Qusetion is more the use of this very special and unusual -maybe unique ?, tribal ceramic ? I stay available if you have a solution of this question, to make new studies on this point)
Very good condition, without any crack, broken part, fels or restoration, and more very nice enemail quality, sometimes lightly iridescent.
Sizes 30cm lenght * 14cm large and 9cm high (inside dameter of each bowl around 10cm)