This is a lovely old pan. It has gate marks on the bottom; I believe that this pan was manufactured prior to the 1900s. It is surely antique.
The pan is marked only with a raised number 7 under one of the handles. The Griswold Mfg. Co. also manufactured a number 7 gem pan with 8 cups that was the same size, but this particular variation is not in the book. I cannot say that this is a Griswold, but it certainly is very similar to the Griswold no. 7 gem pan.
The pan has 8 cups. Please examine the photos as to the casting – it is antique; the casting is not perfect but is very nice. It measures 11-5/8″ long, handle to handle, 7-1/2″ wide, and 3/4″ tall. It has been cleaned to bare iron and seasoned with a mixture of Crisco and Pam – it is ready for use and display!