This is a glass cake pan / jello mold manufactured by Glasbake in the forties. It is a heavy glass mold with vertical rib-design around the outer sides. Although it was part of the "crystal" colored line, it has a tint of yellow. It is marked Glasbake Queen Anne, D-133-413 patent pending. It is 8 3/4 in. in diameter and is 2 1/2 in.=