Help identify Some Iron

I need help identifying the unmarked ones.
This pair of #7's are marked. Wagner Ware and a Hardwick Stove Co.
This is an unidentified #8 It has three dots under the #8 and a letter N.
The next 2 pics are of a skillet I think is much older than the rest It is a #7 with a very pronounced fire ring and an ornate handle.
Any help identifying these skillets would be greatly appreciated.
Mark
This pair of #7's are marked. Wagner Ware and a Hardwick Stove Co.
This is an unidentified #8 It has three dots under the #8 and a letter N.
The next 2 pics are of a skillet I think is much older than the rest It is a #7 with a very pronounced fire ring and an ornate handle.
Any help identifying these skillets would be greatly appreciated.
Mark