The International Silver Company (ISC) is a well-known name in American silver manufacturing, producing a wide range of sterling silver and silver-plated flatware, hollowware, and decorative pieces. Founded in the late 19th century, ISC became one of the most dominant forces in silverware production, with many of its designs still collected and admired today.

This guide explores the history, hallmark identification, popular patterns, and market value of International Silver Company sterling, helping collectors and enthusiasts better understand this iconic brand.

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The History of International Silver Company

The International Silver Company was formed in 1898 through the merger of multiple smaller American silver manufacturers, including:

• Meriden Britannia Company
• Rogers Brothers Silver Company
• Simpson, Hall, Miller & Co.
• Wilcox Silver Plate Co.

By consolidating these companies, ISC quickly became one of the largest silverware producers in the U.S., supplying silver flatware and hollowware to homes, hotels, and institutions throughout the early 20th century.

While ISC produced both sterling silver and silver-plated items, their genuine sterling silver pieces are the most valuable to collectors today.

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Identifying International Silver Company Sterling

Since ISC produced a mix of sterling and silver-plated items, identifying true sterling silver is crucial. Here’s how to tell the difference:

• Sterling silver pieces will always be marked with “STERLING” or “925” somewhere on the item, often on the back of flatware handles or the bottom of hollowware.
• Silver-plated items are typically marked with "IS," "International Silver," or "EPNS" (Electroplated Nickel Silver).
• Some ISC pieces include a company hallmark (e.g., Meriden Silver Co. or Rogers Brothers) alongside "STERLING."

If you're unsure about an ISC piece, a professional silver appraiser or an at-home acid test can help confirm its silver content.

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Popular International Silver Company Sterling Patterns

ISC produced many well-known sterling flatware and hollowware patterns that remain collectible today. Some of the most sought-after designs include:

Prelude (1939)

• One of ISC’s most famous patterns, known for its simple yet elegant design.
• Often found in complete sets, which sell for a premium.

Royal Danish (1939)

• Features a Scandinavian-inspired design with Art Deco influences.
• Highly collectible, particularly full place settings or rare serving pieces.

Wild Rose (1948)

• A detailed floral pattern that was especially popular in the mid-20th century.
• Hollowware items like tea sets and trays from this line can be quite valuable.

Joan of Arc (1940)

• A classic French-style pattern with ornate scrollwork.
• Frequently found in estate collections and high-end antique shops.

Other Notable Patterns

• Courtship (1950)
• Spring Glory (1942)
• Wedgwood (1924)

Each of these patterns varies in value depending on condition, completeness, and demand in the collector’s market.

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How Much Is International Silver Company Sterling Worth?

The value of ISC sterling silver depends on factors such as pattern rarity, weight, and demand. Below are general price estimates for various ISC sterling silver items:

Sterling Silver Flatware

• Single dinner forks or spoons – $25 – $100 each
• Serving spoons and specialty utensils – $75 – $250 each
• Complete flatware sets (for 12 people) – $1,500 – $6,000+

Sterling Silver Hollowware

• Teapots and coffee sets – $500 – $5,000+
• Sterling silver trays – $1,000 – $10,000 (depending on size and pattern)
• Candlesticks and candelabras – $500 – $3,500

ISC silver-plated items, while still collectible, generally hold much lower values than their sterling counterparts.

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Is International Silver Company Sterling a Good Investment?

ISC sterling silver remains a strong investment for collectors, particularly for those who own rare or discontinued patterns. Some factors that contribute to its lasting value include:

• Historical significance – ISC was a major force in American silverware production.
• Silver content – Sterling silver retains intrinsic value based on the metal’s weight.
• Collector demand – Popular patterns such as Prelude and Royal Danish continue to fetch high prices.

While silver market fluctuations can impact value, ISC sterling silver remains a desirable choice for both collectors and investors.

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Where to Buy and Sell International Silver Company Sterling

For those looking to buy or sell ISC sterling silver, the best options include:

• Antique Dealers & Estate Sales – Great for finding vintage pieces in excellent condition.
• Online Marketplaces (eBay, 1stDibs, Ruby Lane) – Allows access to a wide selection of ISC sterling but requires careful authentication.
• Auction Houses (Heritage Auctions, SebastianCharles, Christie's) – Best for high-end ISC silverware collections.

When selling ISC silver, having complete sets or rare serving pieces can increase final sale prices significantly.

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Final Thoughts

International Silver Company sterling silver continues to hold strong historical and collector value. With pieces ranging from affordable individual flatware to high-value tea sets and rare patterns, ISC silver appeals to both seasoned collectors and newcomers to the silver market.

By understanding hallmarks, pattern demand, and market trends, buyers and sellers can make informed decisions when dealing with ISC sterling silver. Whether purchasing for personal use or investment, these pieces remain a timeless symbol of American silversmithing excellence.