I picked up a nice old round broiler and after some cleaning noticed it has a number on the handle, The number 4 1/2, I started researching and looking for other examples and found some other examples that has similar numbers, Do these numbers correspond to a stove eye size(they seem too big).
Anyway...here are a few pics...still cleaning it was really cruddy. I am guessing the piece was made circa late 1800's early 1900's based upon the handle style and gate mark, It is very light and is a very smooth casting.