The following is a Griswold #666 breakfast skillet. Circa 1940. I love this piece. Although the bacon section is a bit small, the area where I'm making eggs is perfect for sandwiches!
I'm starting to acquire so much cast iron, I'm having to hang it up to make room in the cabinet's.
Here is one of my grandfathers smaller skillets, it's marked only with a "T". It's probably an unmarked Wagner. Circa 1925 - 1960.