Can someone help me identify this piece?
The letters are EPNS, for electroplated nickel silver. In short, not sterling. The “WC over G” in a shield is an unidentified maker:
The number is just a model number, with no other meaning.
ETA: And yes, almost certainly British. Pinning down the date, without an identified maker, would be almost impossible - it could be from anywhere within a hundred years, from about 1850 to 1950!