Hjordis Oldfors, Atoll series pottery vase for Upsala Ekeby (Sweden), 1956, #5076 9 3/4" tall. Incised geometric white line on a semi gloss black ground. The base is marked UE (Upsala Ekeby) and HJ (Hjordis Oldfors). Price: $280
Can be seen at: The Missouri Mouse Antiques, 1750 Selby Ave. St Paul, MN 55104