Lisa C

I found this unmarked skillet in my grandmother's kitchen. I've spent hours on line and thought maybe BSR, but the lack of heat ring or visible gate mark has me stumped. The handle is very distinctive in that it is concave and lower than others. I'm attaching photos (I hope, not terribly tech savvy). My grandparents were 3rd generation PA Dutch / Reading, PA residents if that helps. Thank you for any guidance. Lisa C