Need y'all help again please

[Cindy Pierce]

I got this for my birthday and have no clue
About it. All it says is square skillet 10 1/4
Made in the USA it has a 1 on the handle right
Above the loop.

 

[Doug D.]

BSR, post-early 1960s. http://www.castironcollector.com/unmarked.php#bsr

 

[Cindy Pierce]

Thank you very much.