this is an Adendorfer Christmas tree stand make in Germany in the 1940's or 1950's. it is ceramic, glazed on the interior and exterior. the white exterior is embossed with a diamond pattern.
it includes a removable tree frame that easily clips in and out. the frame includes 3 metal screws to hold the tree in place. the size of the vessel is 10 inches across and 5 1/4 deep. the metal hole for the tree trunk is 3 inches across. the base of the vessel is clearly marked Germany.