Silver Scoreboard

Definition and History

The term “constitutional silver” comes from the U.S. Constitution, which granted Congress the power “to coin Money” and fixed the dollar to a specific weight of silver. For most of American history, circulating coinage contained silver because the coins themselves were the money — not tokens representing it.

From 1792 through 1964, dimes, quarters, half dollars, and dollars were struck in an alloy of 90% silver and 10% copper. The silver gave the coins intrinsic value: a dime was always worth at least its melt value, and often more. For over 170 years, Americans carried real silver in their pockets.

The name “constitutional silver” is a modern term used by precious metals enthusiasts. It emphasizes that these coins were minted under the original constitutional framework — where money had commodity value — before the transition to fiat currency.

The Coinage Act of 1965

By the early 1960s, the rising price of silver meant that the metal in a coin was worth more than its face value. People began hoarding and melting silver coins, creating nationwide shortages. Congress responded with the Coinage Act of 1965, signed by President Lyndon B. Johnson on July 23, 1965.

The Act authorized the Mint to replace silver dimes and quarters with a copper-nickel clad composition — layers of copper sandwiched between nickel. Half dollars were reduced to 40% silver from 1965 through 1970, then went clad as well. The new coins looked similar but contained no silver accessible to ordinary circulation.

Johnson famously claimed that removing silver would not cause the coins to disappear — yet silver coins vanished from circulation almost immediately once the public caught on. Gresham’s Law played out in real time: bad money drove out good.

Which Coins Are 90% Silver

Only certain U.S. denominations and date ranges qualify as 90% silver constitutional coinage:

• Roosevelt Dimes — 1946 through 1964
• Mercury Dimes — 1916 through 1945
• Barber Dimes — 1892 through 1916
• Washington Quarters — 1932 through 1964
• Standing Liberty Quarters — 1916 through 1930
• Barber Quarters — 1892 through 1916
• Franklin Half Dollars — 1948 through 1963
• Walking Liberty Half Dollars — 1916 through 1947
• Barber Half Dollars — 1892 through 1915
• Kennedy Half Dollars — 1964 only (90% silver)
• Morgan / Peace Dollars — 90% silver, though traded separately as “silver dollars”

Any dime, quarter, or half dollar dated 1964 or earlier is 90% silver. That single rule catches the vast majority of what you’ll encounter.

How to Identify Constitutional Silver

You don’t need special equipment to sort constitutional silver from clad coins. Here are the key methods:

• Check the date. If a dime, quarter, or half dollar shows 1964 or earlier, it’s silver. No exception.
• The sound test. Silver coins ring with a clear, sustained tone when dropped on a hard surface. Clad coins produce a dull thud. Experienced stackers can sort by ear.
• The edge check. Clad coins show a visible copper-colored stripe along the edge. Silver coins have a uniform silver-colored edge with no copper band.
• Weight. A silver dime weighs 2.5 grams, a silver quarter 6.25 grams, and a silver half dollar 12.5 grams. Clad coins of the same denomination weigh slightly less.

For large quantities, coin shops and stackers often weigh entire lots by face value, since the silver weight per dollar is predictable and consistent.

Silver Weight and Melt Values

Every dollar of face value in 90% silver coinage contains the same amount of silver, regardless of denomination. The key figures:

• 1 dollar face value = 0.715 troy ounces of pure silver
• $1.40 face value = approximately 1 troy ounce of silver
• A silver dime contains ~0.0715 oz of silver
• A silver quarter contains ~0.1786 oz of silver
• A silver half dollar contains ~0.3575 oz of silver

The 0.715 factor accounts for wear. Brand-new coins contained 0.7234 oz per dollar, but circulated coins have lost a small amount of metal. Dealers and stackers use 0.715 as the standard conversion for worn coinage. Use the Coin Calculator to figure melt values at current spot prices.

Why Stackers Prefer Constitutional Silver

Constitutional silver occupies a sweet spot that appeals to both new and experienced silver stackers:

• Low premiums over spot. Compared to American Silver Eagles or other bullion, constitutional silver often trades at or near spot price, making it one of the cheapest ways to acquire physical silver.
• Recognizability. These coins were real U.S. money. Their designs are instantly recognizable, which reduces the trust barrier when buying or selling person-to-person.
• Divisibility. A bag of 90% silver contains dimes, quarters, and halves — small units that can be used in transactions of any size without cutting bars or rounds.
• No counterfeiting concerns. The copper-silver alloy, weight, and ring of genuine constitutional coins are hard to replicate cheaply. A quick weight and sound test weeds out fakes effectively.
• Historical connection. For many stackers, holding a coin minted when silver was money carries a philosophical weight that modern bullion simply doesn’t match.

The main drawback is that constitutional silver is heavier per ounce of pure silver than bullion — you get copper along with the silver — so storage takes more space for the same metal content. Most stackers consider that a fair trade for the low premiums.

Key Takeaways

Constitutional silver is real money from an era when U.S. coinage contained 90% silver. The Coinage Act of 1965 ended that tradition, replacing silver with clad copper-nickel coins that look similar but carry no intrinsic value. Any U.S. dime, quarter, or half dollar dated 1964 or earlier is 90% silver, containing 0.715 troy ounces per dollar of face value. Stackers value these coins for their low premiums, divisibility, recognizability, and resistance to counterfeiting — and they remain one of the most practical ways to hold physical silver.

Ready to calculate the silver value of your coins? Try the Coin Calculator →