semi-numismatic

What’s the Difference Between Mint State Coins and Proof Coins?

New coin collectors and beginning numismatists often ask questions like: 

  • Are mint state coins or proof coins better? 
  • Are proof coins worth more than mint coins? 
  • What are uncirculated coins?

Answers to some of these questions will vary depending on context. One of the most important contexts is yours. As I have mentioned before, the best choice for you depends on your financial goals. The first step to determining which may be better for your portfolio or collection is understanding the difference between mint state coins and proof coins. This knowledge can help you decide which kind of coin you like better and what makes sense for you. 

So let’s find out: What’s the difference between mint coins and proof coins?

What are Mint State Coins?

A coin does not come into the world as a “Mint State” coin. Mint state is a description applied to certain coins graded according to the Sheldon Scale, where the coin is considered to be in the same state or condition as when the mint struck the coin. 

The Sheldon Scale, according to the Professional Coin Grading Service (PCGS), is a numeric grading scale ranging from 1 through 70. Based on the theory developed by Dr. William Sheldon, the famous numismatist, in 1948, a coin assigned the highest “Mint State” (MS) grade of MS-70 would be worth 70 times more than a coin graded as a 1. A coin graded MS-70 shows no post-production flaws or imperfections even at 5x magnification.

2014 50-dollar gold eagle mint state coin graded MS-69 by PCGS
2014 50-dollar gold eagle mint state coin graded MS-69 by PCGS

The Sheldon coin grading scale uses the letters MS, for “Mint State” for coins judged to score 60 or more on the 70-point scale. This system, used by some of the most respected authorities in the numismatic grading world – including the Numismatic Guaranty Corporation (NGC) and PCGS – allows for some flaws and imperfections on coins still graded as mint state. Sometimes these marks and imperfections occur during the striking and post-production handling process. However, coins officially graded as “mint state” are still at the top of the scale, ranging from MS-60 to MS-70.

The grading scales used by PCGS and NGC break down the criteria for each numeric grade as well as strike type.

Another question also comes up frequently: 

What’s the difference between mint state coins, circulated coins, and uncirculated coins? 

It’s probably not difficult to tell the difference between circulated coins and uncirculated coins, as coins minted for circulation are meant to be handled and exchanged by the public as legal tender for any number of economic transactions. In other words, circulated coins are, or have been used as, everyday money.

According to the US Mint, uncirculated coins share some similarities to proof coins, as we will see, in that they are hand-loaded into the press and struck on special blanks, or planchets. Uncirculated coins are struck to have a matte finish, though still somewhat shiny. But they are not intended for circulation in the general economy as everyday money. 

The uncirculated coins produced by the United States Mint also come with a certificate of authenticity. These coins may be graded as mint state coins because they were not subject to the wear and tear of circulation. 

Ultimately, all of these kinds of coins are of interest to coin collectors and numismatists. The kind and level of interest varies depending on the unique features each individual seeks in a coin. Uncirculated coins and mint state coins are more aesthetically appealing due to the pristine condition, and it is often the case that the higher the grade of the coin, the higher the value. 

However, many collectors seek circulation coins that are rare because of errors made during the minting process. The scarcity of the coin creates the excitement of a kind of pocket-change treasure hunt.

What are Proof Coins?

The determination of a proof coin has more to do with its method of manufacture than its graded condition, although proof coins may still be graded from PF-60 to PF-70 on the Sheldon Scale. Proof coins are the highest quality coins produced by any mint, and typically meet the following criteria:

  • Made from highly polished planchets or blanks
  • Hand-loaded into the coin-striking machines
  • Struck at least twice, often up to five times, with a highly polished die to ensure a frosted-looking image, or “relief,” on a gleaming mirror background, or “field” (as opposed to the matte finish of mint state coins)

The US Mint produces proof coin sets that include an example of each denomination struck for circulation. These sets usually include one:

  • Native American $1 coin
  • Kennedy half dollar
  • Roosevelt dime
  • Jefferson nickel 
  • Lincoln penny
  • Proof versions of each year’s special program coin releases such as the America the Beautiful Quarters® Program 

Before 1933, these sets were given to members of Congress, presented as gifts to other VIPs, and put on display in various exhibits. Now, however, proof coin sets are available to all collectors.

The US Mint, the Royal Canadian Mint, PAMP, Perth Mint, and most other popular mints and precious metal companies produce premium specialty proof coins struck from highly polished bullion planchets, most often precious metals such as gold, silver, platinum, and palladium. For example, Rosland Capital recently donated a gold proof coin featuring the Formula 1 driving legend, Michael Schumacher, to benefit the Caudwell Children charity.

1-kilogram gold proof coin featuring Formula 1 driver Michael Schumacher, encased in acrylic
1-kilogram gold proof coin featuring Formula 1 driver Michael Schumacher, encased in acrylic

These proof coins are produced for collectors who also wish to purchase a quantity of highly refined precious metal, such as a .999 (three nines) fineness for silver bullion, a .9999 (four nines) fineness for gold bullion, and .9995 (three nines five) fineness for platinum or palladium. These buyers seek the value of the physical metals from which the proof coins are minted, with the aesthetic appeal and collectibility an added bonus.

How to Buy Mint Coins and Proof Coins

Now that you have a better understanding of the difference between mint coins and proof coins, you’re ready to continue your research. Only you can decide which coins are best for you. People buy different types of coins for different reasons, and it’s important for each person to do their research and determine which products they want. 

What should you look for when buying mint coins or proof coins? Any reputable precious metals and coin dealer such as Rosland Capital sells coins – numismatic, semi-numismatic, mint state, proof, or bullion – and can help you find coins graded by a respected third-party authority such as NGC or PCGS, or certified by an assayer at a well-known mint, with proper documentation and certification of authenticity.

Get more information from the precious metals experts at Rosland Capital.

Rosland Capital at Abu Dhabi Grand Prix

What’s the Difference Between Bullion and Numismatic Coins?

Is there a difference between bullion coins and numismatic coins? Yes, and when you’re in the market for coins, it’s important to know what you’re looking for and why you’re looking for it. Bullion coins and numismatic coins are different types of coins that are valued differently and for different reasons.

For some coins, you may be more interested in mintage and coin grading from grading services such as NGC and PCGS than in the price of gold or market value of silver bullion coins.

But there’s still some overlap, especially when considering well-known eagle coins like gold eagles that are minted from physical gold planchets, or silver eagles that have high silver content, both of which are impacted by precious metals prices as well as their mintage and collectible value. This can leave you asking, “How much is a gold coin?” The answer is: It depends on what kind of gold coin you mean. So, before you commit to working with any coin dealers, let’s explore the differences and the similarities, and what that may mean for you.

What is bullion?

What does the word “bullion” make you think of? Do you imagine the huge rectangular gold bullion bars stacked like bricks in a vault at Fort Knox? You’re not wrong. But that’s only part of the picture. Bullion coins are minted using those same highly refined precious metals such as silver, gold, platinum, and palladium. 

As Rosland Capital’s Precious Metals & Coins Glossary (by kind permission of Lorenz Books, publishers of one of our favorite books, The World Encyclopedia of Coins, written by Dr. James Mackay) succinctly states: “Bullion is precious metal whose value is reckoned solely by its weight and fineness.”

Regardless of the shape or size, bullion is all about the purity of the metal itself. Precious metal purity is graded according to millesimal fineness, or parts per thousand, and the standard varies by metal. For example, an assayer certifies the grade of fine silver only for silver bullion with a millesimal fineness of 999, or 999 parts per thousand. This translates to 99.9% pure silver. The same purity standard holds for gold bullion. This level of purity is called 24-karat gold, though that term is most commonly used with jewelry.

According to London Bullion Market Association (LBMA) purity standards for Good Delivery, platinum and palladium bullion must meet the minimum requirement of 99.95% pure platinum or palladium. Although we know that gold is mined along with other precious metals such as platinum to be used in jewelry, electronics, and sustainable energy industries, coins remain one of the most popular forms and uses. All these precious metals are available as bullion coins. Which brings us to our main question.

What’s the difference between bullion coins, numismatic coins, and semi-numismatic coins?

What are bullion coins?

Again, to quote the Glossary, a bullion coin is a coin struck in precious metal, now usually with an inscription giving its weight and fineness, whose value fluctuates according to the market price of the metal.

Some of the most popular bullion coins include ones minted in the U.S., Canada, South Africa, Austria, and the United Kingdom:

It is worth noting that different bullion coins can have different metal content. For example, the American Buffalo is 99.99 fine gold, while the American Eagle is 91.67% pure gold. The Eagle still contains 1 Troy oz of gold, because it weighs 33.931 grams, or around 1.09 Troy ounces.

As long as a bullion coin’s gold content and weight are known, and the issuing authority—in this case the US Mint—is trusted, these variances are of no import.

Although bullion coins are not now meant for use as currency, they are issued by a sovereign nation, have a legal tender value and could theoretically be used for purchases. The fact that the legal tender value is a small fraction of the metal content’s worth discourages that sort of activity.

You may also come across “rounds” that have the same metal content as a bullion coin of the same weight, but these are not legal tender coins whose production is authorized by a sovereign government.

While bullion coins can be seen to have a functional, transactional purpose, they are not immune to the tides of fashion. Before the US Buffalo coin was introduced, the Canadian Gold Maple Leaf, promoted as ’24-karat,’ was a particularly popular purchase. The arrival of the Buffalo, with its nostalgic use of the Buffalo Nickel design, and its homage to the incuse lettering of the $2.5 and $5 Indian Head coins, created a new favorite.

What are numismatic coins?

What does numismatic mean? 

Let’s check with our Glossary again. It says: “Numismatics (from Latin numisma, coin) is the study and collection of paper money, coins and medals.”

According to the American Numismatic Association (ANA), numismatists study money in any of its forms, often focusing on certain areas of numismatics, such as coins, tokens, or paper currency. For our purposes here, numismatics relates to coins. This often involves an interest in coins as currency, as part of human histories, cultures, and societies. 

Numismatic coins are essentially coins that are no longer in production, are in limited supply and, in the case of US coins, were minted before 1933. They were usually minted as bullion for use as currency and as a medium of exchange. They only acquired their ‘numismatic’ status later, once they became part of history.

One example would be the beautiful $2.5 and $5 Indian Head coins first issued in 1908. These have a recessed, or “incuse” design, and were initially not popular—people thought germs might hide in the crevices—but now they are beloved collectors’ items.

Coin buyers also seek coins minted up to present day, especially limited or special editions, sets such as the U.S. quarters featuring the fifty states, and the now-rare first euros released by each state that joined the European Union prior to standardizing the currency across nations. The scarcity of coins stamped with errors will always be a source of attraction and fascination for numismatists.

That’s not to say that value is unimportant. On the contrary, the value of numismatic and semi-numismatic coins can sometimes greatly exceed that of bullion coins with the same metal content. One difference between bullion coins and numismatic coins is what gives each its value. As we’ve seen, bullion coins are valued for their precious metal content and weight, whereas numismatic coin values also derive from factors such as rarity, historical context and importance, condition, and current demand for a particular coin.

The most valuable numismatic and semi-numismatic coins are worth far more than the spot price for their inherent metal value. One of the most famous numismatic coins is the United States $20 double eagle gold coin. This U.S. gold coin was the result of a collaboration between President Theodore Roosevelt and American sculptor Augustus Saint-Gaudens. While visiting the Smithsonian and seeing the ancient Greek coins bearing the image of Alexander the Great, Roosevelt had the idea to reinvent American coinage, introducing a higher caliber of artistic quality. Mission accomplished.

What are semi-numismatic coins?

While “numismatic coins” can be defined as older coins that are no longer made, semi-numismatic coins can still be in production. Along with “First Strikes”, semi-numismatic coins can include proof coins, which are specially minted coins produced in limited runs by some of the most popular mints and precious metals brands. These coins are usually double or triple struck and placed into protective casings without being touched by human hands or placed into circulation, leaving them in “mint condition” without scratch or blemish. 

Proof coins will have a highly polished mirror background, with their design rendered in frosted finishes, giving a cameo-like appearance – they are visibly different and often much more appealing than their mass-produced bullion cousins.

These uncirculated, collectible coins are often of the same metal content as bullion coins while also being relatively rare and unusual, and they draw value from both of these aspects. 

For example, the American Eagle Gold Proof, produced in limited quantities by the US Mint, is a popular item with coin enthusiasts, while the “Uncirculated” version of the same coin is minted in much larger quantities, and would be described as a bullion coin.

In general, semi-numismatic coins can add unexpected character and value to your portfolio. They are also available in a greater variety of sizes compared to coins designed for circulation.

Is it better to buy bullion coins or numismatic coins?

There’s no one answer to that question—it depends on your goals. Whatever you choose, it often makes sense to diversify your holdings and help solidify your portfolio. If you’re thinking about buying precious metals, whether gold, silver, or others contact our precious metals specialists at Rosland Capital.