Possible Sheffield and Paul Storr

Greetings everyone,

I’m glad to have found this form. A friend of mine at the flea market came across a multiple piece tea(?) set with platter, and creamer. I snapped a picture of the hallmarks and hopefully someone can help us out on what this piece really is. Any help would be greatly appreciated!

thank you,

Neither Storr nor Sheffield. This is an American electroplater, unknown according to 925-1000.com.