Read EPNS as 'no silver in the base'
Nickel silver contains copper, nickel and zinc, and no silver. The plating is a few microns of real silver over that. There is nothing to recover, and the piece's value is its design and condition.
Electroplated nickel silver. A thin silver plating over a base that contains no silver.
Germany, Italy, the Netherlands, Scandinavia and central Europe5 references
EPNS stands for electroplated nickel silver: a thin layer of real silver electrodeposited over nickel silver, which is a copper-nickel-zinc alloy containing no silver whatsoever. EPBM is the same idea over Britannia metal, a pewter-like alloy. A1 was a quality designation used by some manufacturers to indicate the thickest plating grade.
These marks dominate Victorian and later British and American tableware, and a great deal of what people inherit as 'the silver' is EPNS. It is not silver in any meaningful sense — the plating is a few microns and there is nothing beneath it worth recovering.
It is, however, frequently good. Sheffield and Birmingham plate of the late nineteenth century is well designed and well made, and Art Deco plated tableware is collected. The value is entirely in the object rather than the metal, and heavy wear that has broken through to the yellow-grey nickel silver beneath drops it considerably.
EPNS · EP · A1 · EPBM · Silver on copper
Establish which of these you are holding before judging it. A genuine piece read against another reference's rules will look wrong when it is not.
These apply to this model and not to the rest of 800 / 835. Work them alongside the maker's general checks, not instead of them.
Nickel silver contains copper, nickel and zinc, and no silver. The plating is a few microns of real silver over that. There is nothing to recover, and the piece's value is its design and condition.
Worn plate shows the yellow-grey of nickel silver at the rims, handles and the crests of any decoration. Extensive breakthrough substantially reduces value, and replating is possible but rarely economic.
Effectively no metal value. Good Victorian and Art Deco plate has design value.
An orientation for honest, unrestored condition — never an appraisal, and never a quotation.
Lovenhall RingThe mark tells you what the metal claims to be. The instrument reads the setting and the stones together and gives a range to orient you — before anyone charges you for an appraisal.