Old Sheffield Plate or Electroplate and How to Tell Them Apart

A pair of candlesticks turns up at a country sale, catalogued simply as "Sheffield plate, c.1800". One estimate says £40, the other buyer in the room clearly thinks they are worth ten times that. Both cannot be right, and the answer usually sits on the underside, along the edges and at the high points where a century of polishing has worn through.

Telling Old Sheffield Plate from electroplate is one of the most useful skills a silver buyer can learn, because the price gap between the two is enormous and the auction descriptions are often careless. I have handled both for more than thirty years, and the checks below take under five minutes once you know where to look.

Two Very Different Ways of Plating Silver

Old Sheffield Plate was made by fusing a thin sheet of silver onto a thicker ingot of copper, then rolling the two together into sheet metal. The process is credited to Thomas Boulsover in Sheffield around 1743, and it was the dominant way to make affordable silver-looking wares until the 1840s. Because the silver was bonded before the object was shaped, the maker had to work around the copper core at every cut edge.

Electroplating, patented by the Elkington firm of Birmingham in 1840, reversed the order. The object was made first, usually in nickel silver or Britannia metal, then silver was deposited over the finished piece in a chemical bath. Within about twenty years, electroplate had almost entirely replaced the older method.

That difference in order of manufacture is what leaves the clues you are looking for.

Reading the Edges and Seams

Turn the piece over and run a fingertip along every edge. On Old Sheffield Plate, cut edges would expose a line of copper, so makers hid them. Look for these signs:

A rolled or turned-over edge, where the sheet was folded back to bury the copper
Applied silver wire or a separate stamped border soldered along the rim
Visible seams on hollow pieces such as coffee pots and tankards, since they were formed from flat sheet
A slightly heavier, rounded edge that feels different from the body

Electroplate does not need any of that. The silver goes on after construction, so it covers seams, edges and solder evenly. A crisp, plain edge with uniform silver colour all the way round points strongly toward electroplate.

Bleeding, Tinning and Let-In Shields

Copper bleeding

Where Old Sheffield Plate has been polished hard, the silver layer wears through and a warm, pinkish copper tone shows on the high points: the rims, the knops of a candlestick, the feet of a tray. Collectors call this bleeding. Worn electroplate shows a different colour underneath, usually a dull yellow or grey from nickel silver, or a dark grey from Britannia metal.

Tinned undersides

Early Sheffield sheet was often silvered on one side only. The inside of a tankard or the underside of a salver was then coated in tin to hide the copper. Tin has a soft, slightly grey sheen, quite unlike silver. If the interior looks dull and the exterior bright, you are likely holding something made before about 1770 to 1780.

Let-in silver shields

Engraving a crest into Sheffield plate would cut straight through to the copper. Makers solved this by soldering in a small panel of thicker silver where the owner's arms would go. Breathe gently on the cartouche of a tray or teapot and the outline of the inserted shield often appears in the condensation. Electroplate rarely needs this, because the plate can simply be engraved before or after plating.

What the Marks Can and Cannot Tell You

Most buyers reach for the marks first. On this question, I think that is the wrong place to start, and here is why.

Old Sheffield Plate is very often unmarked. An Act of 1773 stopped platers from using marks that imitated hallmarks, and while makers were later allowed to register a name and symbol with the Sheffield Assay Office, many never bothered. An unmarked piece is therefore entirely normal for genuine Sheffield work.

Electroplate, by contrast, is usually marked, and the marks are informative once you can read them:

Mark	What it means	Likely date
EPNS	Electroplated nickel silver	1850s onward
EPBM	Electroplated Britannia metal	1850s onward
A1 or EP	Quality grade or plain electroplate	Late 19th to 20th century
Four pseudo hallmarks in shields	Maker's style imitation of hallmarks	Mostly Victorian and later

The real trap is the word Sheffield on its own. A great deal of 20th century electroplate was stamped "Sheffield" or "Made in Sheffield England" simply because it was made there. That word says where a piece came from, not how it was made. If you want to compare these plate marks against genuine assay marks, our guide to dating sterling silver by its hallmarks shows what a true set should contain.

Why Replating Is Usually the Wrong Advice

When a Sheffield piece shows heavy bleeding, the common suggestion from dealers and repair shops is to have it replated so it looks new. For electroplate, that is fine and often sensible. For Old Sheffield Plate, it is close to vandalism.

The moment a piece is electroplated over, it loses the very evidence that proves its age: the copper glow, the tinned interior, the subtle colour shift at the let-in shield. Collectors pay for that evidence. A worn but honest pair of Sheffield candlesticks can fetch several hundred pounds at a regional sale, while the same pair replated often struggles to reach a third of that. Some replated Sheffield is even mistaken for ordinary Victorian electroplate and sold as such.

If the bleeding bothers you, leave it alone and clean very gently. The methods in our piece on cleaning Victorian silver without damaging the patina apply here too, with one extra rule: avoid abrasive polishes on high points, where the silver layer is already thinnest.

A Five Minute Check at a Sale

When you are standing at a viewing table with no reference books, run this order:

Look at the high points for pinkish copper or grey base metal.
Run a finger along every edge for rolled rims or applied wire.
Check hollow pieces for visible seams.
Look inside or underneath for dull tinning.
Breathe on any engraved cartouche to look for a let-in shield.
Only then read the marks, if there are any.

Three or more Sheffield signs together make a confident call. One sign alone, especially a stamped "Sheffield", is not enough.

Frequently Asked Questions

Is Old Sheffield Plate worth more than sterling silver?

Rarely. Sterling has bullion value that Sheffield plate does not. A fine Sheffield piece can still outsell a plain sterling one, but on average the sterling version of the same object is worth more.

Can a magnet tell them apart?

No. Copper, nickel silver, Britannia metal and silver are all non-magnetic. A magnet only rules out steel or iron cores, which appear on some cheap later pieces.

Were Sheffield plate pieces made outside Sheffield?

Yes. Birmingham was a major centre too, and some was made in London. The term describes the method, not the town where a piece was made.

The Takeaway Before You Bid

Ignore the catalogue wording and trust the object. Edges, seams, copper at the high points, tinned interiors and let-in shields tell you far more than any stamped word. When three of those agree, you know what you are holding and can bid on it with confidence. For more on reading old pieces at the viewing table, browse our full silver collecting guides.