I looked in the Ditmar Urbach web site and found the exact basket pattern as the one  I bought at the antique store.The hand painted design was different, than mine.  It was made somewhere between 1920 and 1938 when the NAZIs took over the company. The Uranium mine in Joachimstahl, Czeckoslovakia was the only operating uranium mine in the area at the time. That mine was most likely the source of the uranium used in my piece. I will definitly check that store again. Ask your antique dealers for Czech pottery. Don't look for specific colors, just check each out.  Bob