Which Old Coins Are Actually Worth Money

Most old coins are worth face value, or a small premium over it. Age is close to irrelevant: Roman bronze coins sell for a few pounds, while some coins from the 1950s are worth thousands. What matters is the date and mint mark combination, the condition, whether the coin contains precious metal, and whether collectors actually want it.

Four things decide whether a coin is worth anything

Mintage and the date-mint mark combination. Coins were struck at different facilities in different years, and some combinations were produced in very small numbers. A coin is identified by its date plus its mint mark, and those two together are what collectors look up. On United States coins the mint mark is a small letter: D for Denver, S for San Francisco, O for New Orleans, CC for Carson City, W for West Point, and P or no letter at all for Philadelphia. Its position moves depending on the series, so learn where to look for the type you have. On Lincoln cents it sits under the date on the obverse. On older silver coins it is often on the reverse, near the bottom.

Condition, which collectors call grade. Coins are graded on a scale from 1 to 70, where 70 is a flawless uncirculated coin and single digits are worn nearly smooth. The gap between grades is enormous for scarce coins. The same date and mint mark might be worth fifty dollars in worn circulated condition and many thousands in pristine uncirculated condition. For common coins, grade matters much less, because a beautiful example of something everybody has is still something everybody has.

Precious metal content. This is the floor under a lot of old coins and the reason so many are worth more than face value. In the United States, dimes, quarters and half dollars dated 1964 and earlier are 90% silver. Half dollars from 1965 to 1970 are 40% silver. Jefferson nickels struck during the war years from 1942 through 1945, identifiable by a large mint mark above the dome on the reverse, are 35% silver. In the United Kingdom, coins dated before 1920 are sterling silver, those from 1920 to 1946 are 50% silver, and everything from 1947 onward is cupronickel with no silver at all. A worn common-date silver coin is worth its metal, which moves with the spot price, so check the current silver price before quoting yourself a number.

Demand. Some series are collected intensely and some are not. That is why a common Morgan dollar outsells a scarcer coin from a series nobody assembles.

The coins actually worth checking for

There is a short list of well-known key dates that are genuinely scarce and genuinely valuable, and they are worth memorising if you are going through a jar of change.

In the Lincoln cent series, the 1909-S VDB and the 1914-D are the famous keys, along with the 1931-S. The 1955 doubled die cent, on which the date and lettering show a dramatic visible doubling, is one of the most recognisable error coins in American numismatics and is valuable in any grade. Among Buffalo nickels, the 1937-D three-legged variety, where a die polishing error removed one of the bison's front legs, is the standout. In dimes, the 1916-D Mercury dime is the key to the series. Among Washington quarters, 1932-D and 1932-S are the low-mintage dates. Among Morgan dollars, the Carson City issues and the 1893-S are the ones that matter. Among Indian Head cents, the 1877 is the key date.

In British coinage, the 1933 penny is the legendary rarity, though so few exist that you will not find one in a coin jar. The modern equivalent that people actually do find is the 2009 Kew Gardens 50p, which had a genuinely low mintage for a circulating coin and trades for a real premium over face value.

Everything else in the jar is very likely common. The great majority of Wheat cents, Buffalo nickels, Mercury dimes and Indian Head cents that turn up in family collections are worn common dates worth anywhere from a few cents to a few dollars.

The traps

Never clean a coin. This is the single most important thing in this article. Cleaning, polishing, scrubbing, dipping in ketchup or vinegar, or rubbing with a cloth all leave microscopic scratches and destroy the original surface. Collectors and grading services can spot a cleaned coin instantly, and a cleaned coin is worth a fraction of an uncleaned one in the same condition. Dealers routinely see coins that lost most of their value to an hour of well-meaning polishing. Dirt and toning are fine. Leave them alone.

Ignore high asking prices. Anyone can list a coin at any price. A common Wheat cent listed at two thousand dollars is not evidence that Wheat cents are worth two thousand dollars; it is evidence that a person typed a number. The correction is the same one that works for every collectible: search the coin on eBay, filter the results to Sold items, and look at what examples actually closed at. That method is set out in full in the guide to finding out what an antique is worth, and it applies to coins with one refinement, which is that you should compare like grades. A sold listing for a graded uncirculated example tells you nothing about your worn one.

Be sceptical of advertised "rare" coins. Coins sold through television advertising, newspaper inserts and online promotions as rare investments are usually common coins in fancy packaging, often gold-plated or coloured. Plating and colourising a circulating coin destroys any numismatic value it had. These are novelty items, not investments.

Do not trust a coin because it is in a plastic holder. Third-party grading by a reputable service is genuinely meaningful; a generic plastic case with a self-assigned grade printed on a paper insert is not. Learn which services the market respects.

How to work through a collection

Sort first by country and series. Within each series, sort by date and mint mark, and set aside anything on a key date list. Then pull out everything with precious metal content by date, which for US coins mainly means pre-1965 dimes, quarters and half dollars, and for UK coins means anything dated 1946 or earlier.

Weigh the silver as a group and calculate the metal value from the current spot price. As a rule of thumb, one dollar of face value in pre-1965 US 90% silver coinage contains a bit over 0.7 troy ounces of silver. That gives you a floor for the whole pile before you look at anything else.

Then look for errors. Genuine mint errors, such as off-centre strikes, doubled dies, clipped planchets and coins struck on the wrong blank, carry premiums. Damage that happened after the coin left the mint, including scratches, machine dents and the various things people do to coins for fun, does not. The distinction matters and it is the one most beginners get wrong.

Photograph anything that looks promising, straight on, in even light, both sides. If you are not sure what a coin is, the Valued app will identify it from a photo and give you a starting estimate, which is a reasonable way to sort a large accumulation before you research the handful that deserve attention.

When to bring in a professional

If your research suggests a coin might be worth more than a couple of hundred dollars, stop handling it and get expert eyes on it. Two things are worth paying for at that point: authentication and grading.

The major third-party grading services authenticate a coin, assign a numerical grade, and seal it in a tamper-evident holder. That certification is what allows a coin to sell at full market value, because buyers no longer have to trust a photograph. Grading costs money per coin, so it makes sense for genuinely valuable pieces and not for a jar of Wheat cents.

For a collection you want to sell as a whole, a reputable local coin dealer will look through it free, and it costs nothing to get two or three opinions. Look for dealers who belong to a recognised numismatic association. Expect a dealer to offer below retail, because they have to resell at a profit, and judge the offer against sold prices rather than against catalogue values, which describe the top of the market.

If you inherited a collection and have no idea what is in it, resist the urge to tidy it up. Do not remove coins from their original holders, do not sort them into new albums, and above all do not clean anything. Take it as it is.

Common questions

Are all pre-1965 US coins silver?

Dimes, quarters, half dollars and dollars dated 1964 and earlier are 90% silver. Cents and nickels are not, with the single exception of the wartime nickels from 1942 to 1945, which are 35% silver and carry a large mint mark above the dome on the reverse. So a pre-1965 penny is just a penny, and a pre-1965 dime has real metal value.

Is a wheat penny worth anything?

Most Lincoln Wheat cents, struck from 1909 to 1958, are common and worth a few cents to a few dollars depending on date and condition. The exceptions are the well-known keys, principally the 1909-S VDB, the 1914-D, the 1931-S and the 1955 doubled die. Check the date and mint mark on every one before you assume, but expect most of them to be ordinary.

Should I clean a coin before selling it?

No, under any circumstances. Cleaning is the fastest way to lose most of a coin's value, and it cannot be undone. Buyers pay for original surfaces, and a cleaned coin is discounted heavily or rejected outright by grading services. If a coin is caked in grime and you cannot bear it, ask a dealer first rather than experimenting.

How do I find out what a foreign or ancient coin is worth?

Identify it first, using the inscription, the ruler or emblem depicted, and the denomination, then search that identification with sold listings filtered on. Ancient coins in particular are far more common than people expect, and ordinary worn Roman bronzes sell for small sums. For anything that appears to be gold, or to be a genuinely scarce type, consult a specialist dealer rather than relying on an online search, and apply the same scepticism to high asking prices that you would to Beanie Baby listings.