This is an Imperial Glass Cape Cod clear glass 16 1/2" wide torte plate or platter. It is slightly depressed in the center with a corresponding small foot on the underside. Cape Cod is stem #1600 or #160 by Imperial Glass. It was produced from 1932-1984 and is considered an elegant glass pattern. This may also be a punch bowl liner or underplate. It is in excellent condition with no chips or cracks.