Help with hallmark

Hi folks, I hope someone can help me out with a silver hallmark. I’ve done my best with the picture.
1st mark is P
2nd is BRS
3rd ?
4th lion
5th A

I will post another pic & description in whats it worth section. Many thanks Rob.

This is not an American mark - it seems to be Birmingham 1925; the illegible mark ought to be the Birmingham anchor. The makers are Pinder Brothers of Sheffield.