Hi does anybody know these Hallmarks please
It says [E] [P] [N [S] [symbol]. This means electroplated nickel silver - so not silver and therefore not a hallmark. EPNS is a generic term which is not specific to any particular manufacturer so further identification is not possible. The final symbol may be another “S” which could stand for Sheffield, a centre of the electroplate industry. 2907 is simply a pattern number.
Phil