How to Tell Sterling Silver from Silver Plate

Solid silver and silver plate can look very similar, especially after polishing. Identification should begin with marks and construction, not colour alone.

Understand the difference

Sterling silver is an alloy containing a specified proportion of silver. Silver plate has a thin silver layer over a base metal such as copper, brass or nickel alloy. Old Sheffield plate uses fused layers and differs from later electroplate.

Examine the marks

Use a torch and magnifier to locate marks on the base, rim, handle and separate components. British sterling should be assessed through its hallmark group, including sponsor, fineness and assay office marks where required.

Plated wares may carry terms or initials associated with electroplate, a manufacturer, patent or quality grade. Marks vary by country and date, so compare them with official or specialist references. Do not assume that a single "925" or lion-like symbol authenticates the whole object.

Look at worn areas

On plate, high points, edges and frequently handled areas may reveal a different-coloured base metal. Copper can show reddish wear; nickel alloys may appear greyer. However, grime, solder, repairs and reflected colour can mislead.

Do not polish through the surface to test it. Removing plate permanently damages the object.

Check construction and weight

Seams, rolled edges, filled handles and weighted bases affect weight, so a heavy object is not automatically solid silver. Inspect removable parts for matching marks and wear.

Consider old Sheffield plate

Fused plate may show copper at worn edges or a visible layered construction. It can be highly collectable in its own right. Do not dismiss it as an inferior modern substitute.

Ask about alteration

Engraving can be erased, cartouches replaced and marks transferred. Compare surface thickness, colour and patina. The [LAPADA silver guide](https://lapada.org/guides/buying-antique-silver/) recommends checking gauge, weight, condition, colour, patina, date, maker and restoration together.

When value depends on composition, consult a specialist dealer, assay office or qualified valuer. Avoid home acid tests on finished antiques.

For practical restoration work and close-up workshop discoveries, [watch and subscribe to Antique Repair Shop on YouTube](https://www.youtube.com/@AntiqueRepairShop).

Sources and further reading

• [LAPADA: Guide to buying antique silver](https://lapada.org/guides/buying-antique-silver/)
• [British Hallmarking Council: Practical hallmarking guidance](https://www.gov.uk/government/publications/hallmarking-guidance-notes/hallmarking-is-the-law-guidance-summary)
• [Canadian Conservation Institute: Recognizing metals](https://www.canada.ca/en/conservation-institute/services/care-objects/metals/basic-care-recognizing-metals-corrosion-products.html)