I have what I believe is an unlisted CD 133 embossed with PATENT over DEC.19/1871 on the dome front, with a small F on skirt also in front, then the number 3 on the back dome.3-piece mold. It is what I would call a light green or lt. yellow green even th e photo does not show this.. The little F is just above and slightly to the right of my thumb. Up date, this is a CD 133.4 (010) thanks to ICON response.