Sterling or silver plate? Follow the words, then the object.

The flatware chest is not the answer.

A fitted wooden chest can make every spoon inside feel like a treasure. The lining is soft, the handles are ornate, and the maker’s name may be one you recognise. Before you count the pieces or reach for the scales, turn over a spoon and read the entire stamp.

You may find Sterling. You may find EPNS. You may find A1 beside a maker, or 90 near an unfamiliar trademark. Those are different kinds of information. Your first job is to work out whether the description concerns a silver alloy, a coating, a base metal, or simply the company that sold the object.

A silver-plated object contains silver at its surface. Its body is another material. Nickel silver is the name of a base alloy, despite the silver in its name. Neither description settles the artistic, historical or personal value of the piece.

A field guide to the wording.

Use the context column as carefully as the abbreviation. These entries explain established wording; they do not certify that a particular stamp is honest or that every part of a mixed object matches it.

Reference notes: Giorgio Busetto / Silver Collection; Giorgio Busetto / Silver Collection; David N. Nikogosyan / ASCAS; Giorgio Busetto / Silver Collection.

What the EP family is telling you.

EPNS and EPBM are helpful because their words describe construction. In EPNS, the silver is deposited over nickel silver, typically a copper-nickel-zinc alloy. In EPBM, it is deposited over a tin-based Britannia metal. The similar-sounding Britannia silver is a different material designation entirely.

This also explains why exposed wear is not always dramatic. A copper substrate may reveal a warm pink tone, while a pale nickel-silver base can remain deceptively similar to the coating. Colour is worth recording, but it is not a composition measurement.

Read an abbreviation as a complete mark. Do not automatically expand every pair of initials beginning with E or P as electroplate: a maker’s initials, pattern code or later engraving can occupy the same small area. Compare the complete impression with a reliable maker-specific reference.

Reference notes: Giorgio Busetto / Silver Collection; Canadian Conservation Institute.

A1 is a trade grade, not a worldwide purity standard.

On British plated tableware, A1 or AI is commonly described as a superior plating grade. That is useful context when the maker and type of object fit. It is not a government assay mark, nor does it mean that an object is made throughout of first-quality sterling.

American usage supplies a useful warning against treating A1 as a permanent top rank. A 1944 National Bureau of Standards publication describes how A1 began as a leading Rogers grade, then became “Standard” as heavier plate and extra deposits at wear points were introduced. In the grading system it discussed, other designations stood above A1. The history is more informative than a modern chart promising a universal number of grams per spoon.

Even a documented original plating allowance would describe manufacture, not the silver remaining after generations of polishing and use. You cannot read the present coating weight from A1. We therefore do not assign a fixed thickness, percentage or scrap value to that mark in our decoder.

If all you have is A1 on an unidentified piece, keep the interpretation open. Look for neighbouring letters, whether the character is a numeral 1 or a capital I, and whether you are even looking at tableware. The relevant context must come before the conclusion.

Reference notes: Giorgio Busetto / Silver Collection; US National Bureau of Standards.

Why 90 and 900 lead to different questions.

On appropriate continental cutlery, 90 can be a plating-quantity designation rather than a fineness. A documented Wellner example used 90 grams of silver for two dozen pieces, while other grades used different deposits. That historical batch basis is not “90% silver,” and it is not 90 grams on a single spoon.

By contrast, 900 used as a millesimal fineness mark claims 900 parts per thousand. Count the digits carefully, but do not make digit-counting your only test. Pattern numbers, sizes, inventory numbers and other national systems also exist. A 100 stamp is a useful reminder that three digits alone do not establish fineness.

The sensible next step is to identify the manufacturer and the form. A service of spoons and forks, a ladle and a knife handle need not have used the same plating allowance. A surviving factory catalogue is more useful than a universal conversion formula.

Reference notes: David N. Nikogosyan / ASCAS.

IS, Rogers and the familiar-name trap.

In the International Silver context, IS refers to the company; it is not an abbreviation for International Sterling. The business brought together many manufacturers and sold both sterling and plated goods. Its name is a research lead, not a single material specification.

1847 Rogers Bros. appears among International Silver’s plated trademarks. The date is part of the brand, so it is not a manufacturing date stamped individually on each spoon. Read the rest of the inscription and identify the pattern before trying to date the set.

Treat names such as Gorham, Reed & Barton or Oneida in the same practical way: investigate the exact line and marking, not the reputation of the name in isolation. Do not let a familiar word outweigh an explicit EP or plate description. Conversely, do not classify every object from a mixed-product maker as plated.

A useful record includes the exact inscription, punctuation, logo outline, pattern, object type and where the stamp appears. “Rogers spoon” is a starting point. A clear photograph of the complete mark can make it a researchable object.

• Meet the makers and their different collecting paths

Reference notes: Giorgio Busetto / Silver Collection.

Alpaca tells you about an alloy, not every layer.

Alpaca or Alpacca, nickel silver and German silver describe silvery base alloys, commonly copper, nickel and zinc. Their names do not promise a silver percentage. That is the crucial distinction when someone describes an Alpaca bracelet as though Alpaca were a grade of sterling.

The nuance is just as important: a base-alloy name does not prove that the whole object contains no silver anywhere. The alloy may have been silver plated, and a composite item may have separate precious-metal fittings. Wellner’s documented range included both plated goods and uncoated Alpacca.

For the same reason, appearance and tarnish are unreliable shortcuts. A silver surface can tarnish over a base-metal body; copper alloys also develop dark or coloured corrosion. Do not use surface colour to declare either “definitely sterling” or “definitely never plated.” Describe what you can see and investigate what lies beneath without creating damage.

Reference notes: David N. Nikogosyan / ASCAS; Canadian Conservation Institute.

Two ways to put silver on the table.

Old Sheffield plate belongs to an earlier manufacturing story. Around 1742, Thomas Boulsover developed a way to fuse a silver layer to copper and roll the joined metals into sheet. The sheet could then be formed into objects. Electroplating later put a silver deposit onto an already formed base-metal object, helping transform the trade in the 1840s.

The distinction is about process, not simply the word Sheffield on a tray. A place name does not establish fused manufacture or date an object. Look for construction evidence and a documented maker rather than treating an impressive inscription as a certificate.

The V&A’s metalworking guide includes a Christopher Dresser teapot designed in 1879 for James Dixon & Sons in electroplated nickel silver. It is a useful reminder that plated metal can be part of an important design story. Knowing the material lets you appreciate the right achievement instead of inventing a different one.

Reference notes: Victoria and Albert Museum.

A close look beats a destructive shortcut.

Photograph the marks, the overall form and existing wear. On a spoon, inspect the back of the bowl and handle edges. On a tray, inspect high ridges, rims and feet. Ask whether a coloured area is exposed substrate, a repair, gilding or residue; one photograph may not settle that.

Do not scratch or file a protected surface to create proof. Do not immerse hollow or filled objects for a water-displacement test. The Canadian Conservation Institute specifically cautions against immersion where construction includes hollow sections, soldered joins or vulnerable composite materials. Repeated polishing removes material too, which is particularly consequential on a thin silver coating.

A quiet magnet response, rapid ice melting or dark tarnish never cancels EPNS or an explicit plate description. Strong attraction is a reason to investigate the responsive component, not a complete analysis of every part. If a valuable object carries conflicting marks, ask an experienced examiner to explain both the construction and the testing method before paying a sterling premium.

• Use the safe checking guide
• Read the silver-and-water care hub

Reference notes: Canadian Conservation Institute.

Keep the object, lose the wrong assumption.

Once you know what a piece claims to be, your decision becomes more interesting. Does the pattern suit your table? Is the set complete enough for your purpose? Are the handles comfortable, the decoration crisp, and the worn areas acceptable to you? Is there a documented maker or family story worth preserving?

Those questions can make a plated object a worthwhile collectible without pretending it is bullion. If you are comparing prices, compare like construction, condition and completeness. Ask how a seller established the material and whether the description covers every component.

The best outcome is a clear, honest description you can keep with the object. If the evidence is incomplete, record that too. Uncertainty is a reason to investigate, not a reason to invent a more valuable answer.

• Return to the markings hub
• Decode 925 and 925 Italy
• Explore vintage silver objects