Griswold Cast Iron Skillet #6

Hi Folks!
Today I have to offer for your consideration is a Griswold # 6 cast iron skillet.It is marked Erie Pa 699 J and has a 6 on handle.This was in my family for years.I am not sure how to grade it.We kept it oiled.There is no rust.It sits flat on surface.Looks good to me (-:
I guarantee this item fully just in case you don't agree.
Thanks for looking and !