i do not see any copper under the silver…so i don’t think it is old sheffield
the hallmarks are: the crown, the erased lion, followed by capitol “P”, “G”, “S”
under the 5 square hallmarks, is “J.B” I believe the makers mark, not impressed in an obect, just the typeface “J.B”
Therefore, I believe Sheffield assay mark, silverplate mark, the P = 1858 year, but what is the separate G and S for??
Please advise. thanks…