Thanks for viewing a 12 inch round, what appears to be Waterford crystal flush ceiling fixture with a 2 inch brass colored base and 8.5 inch crystal with a brass top, as pictured.  The circumference of the base is 38.5 inches and the crystal above the base measures 31 inches.  I do not see a Waterford mark in the glass however it appears to be Waterford and came from the same estate with other Waterford pieces.  The underside which mounts to the ceiling needs some cosmetic repair but the wires appear intact.   The rod is completely attached to the base.   It is in excellent condition otherwise and appears to be vintage.  Please feel free to email me with questions.  Thanks.