The 2007-S Montana State Quarter is worth anywhere from $5 in standard Proof condition to over $1,200 for rare Silver Deep Cameo specimens. While your everyday pocket change usually carries just face value, finding a “S” mint mark from the San Francisco Mint means you have found something special intended for collectors.

Condition / Variety	Estimated Value
Clad Proof (S Mint)	$3.00 – $7.00
Silver Proof (S Mint)	$12.00 – $18.00
Silver Reverse Proof	$25.00 – $40.00
High Grade (PF70 Ultra Cameo)	$100.00+

Identifying the Rare 2007-S Montana Quarter in Your Collection

If you are sorting through a jar of old coins and stumble upon a Montana quarter with a tiny “S” under the “In God We Trust” motto, you have found a Proof coin. Unlike the millions of Montana quarters minted in Philadelphia (P) or Denver (D) for everyday transactions, the San Francisco (S) mint only produced these for special collector sets.

Before you get too excited, it is important to distinguish between the two types of “S” quarters minted that year: the copper-nickel clad version and the 90% silver version. If you are unsure which one you have, the top coin identifier app can help you distinguish between metal compositions by analyzing the coin’s weight and visual characteristics.

Proof coins are struck using polished dies and planchets, resulting in a mirror-like background and “frosted” details. Because they were never meant to be spent in grocery stores, finding one in your change usually means someone broke open a collector set. Even in “circulated” condition, these coins hold a premium over their 25-cent face value. Using a tool like CoinKnow can help you track the current market trends for these specific varieties.

The Value of 2007-S Montana Clad Proof Quarters

The Clad Proof version of the Montana quarter consists of a copper core sandwiched between layers of nickel. It looks like a standard quarter but has a much deeper shine. In terms of market value, these are the most common of the “S” mint marks. Most examples found in their original plastic packaging sell for about $3 to $5.

However, if you have a specimen that is flawless—graded as a PR70 Deep Cameo by a professional service like PCGS or NGC—the price can jump significantly. Collectors are willing to pay a premium for perfection. You can check the current Montana quarter auction records and pricing to see how much top-tier graded clad proofs have sold for recently.

Grade (Clad Proof)	Market Value
PR 65 (Typical)	$4.50
PR 68 (Near Perfect)	$12.00
PR 69 (Superb)	$25.00
PR 70 (Perfect)	$65.00 – $110.00

How Much is the 2007-S Montana Silver Quarter Worth?

The silver version is the “Crown Jewel” of the 2007 Montana releases. Composed of 90% silver and 10% copper, this coin contains 0.1808 troy ounces of pure silver. This means that even if the coin is scratched or damaged, it will always be worth at least its weight in silver melt value.

To identify a silver quarter, look at the edge of the coin. If you see a solid silver-colored stripe without a visible copper layer, it is likely the silver proof. If you see a brown or orange copper stripe, it is a clad coin. For those who want a digital second opinion, the CoinKnow app features a database that helps you verify if your specific year and mint mark had a silver release.

At current silver prices, the raw silver value is roughly $5 to $6, but as a collectible, these coins usually trade for $12 to $25 in standard sets. If you find a perfect PR70 specimen, the value can soar. Professional collectors often consult comprehensive 2007 state quarter value charts and guides to ensure they aren’t overpaying for silver proofs.

Understanding the Design of the Montana Quarter

The Montana quarter was the 41st coin released in the 50 State Quarters Program. The reverse design features a bison skull in the center, floating above a vast Montana landscape that includes mountains and the Missouri River. The inscription “Big Sky Country” prominently celebrates the state’s nickname.

The bison skull is a powerful symbol of Montana’s heritage, representing the indigenous tribes and the wild frontier history of the state. Interestingly, the design was chosen by the Montana State Quarter Commission and approved by the Governor after thousands of residents voted on their favorite concepts.

The obverse (front) of the coin features the familiar portrait of George Washington, but modified slightly for the statehood series to include the inscriptions and the “S” mint mark specifically for these collector versions. For everyday Americans, recognizing these symbols is the first step in realizing that not all quarters are “just 25 cents.”

Mint Errors and Special Varieties to Look For

While the 2007-S Proof coins are generally struck with high quality control, errors can still happen. When they do, the value of the coin skyrockets. In the proof series, collectors look for “double strikes” or “mechanical doubling” on the bison skull or the text.

Another rare find is the “Reverse Proof” Montana quarter, which was part of a special 20th Anniversary Silver Eagle set. In a reverse proof, the background is frosted and the raised details are mirrored—the exact opposite of a standard proof. These are highly sought after and can command prices north of $40 in raw condition.

If you think you’ve found an error, compare it with high-resolution photos in the CoinKnow gallery. Error coins are often faked or misunderstood, so having a reference point is vital before you spend money on professional grading services.

Error Type	Estimated Rarity	Price Range
Double Die Obverse	Very Rare	$50 – $200+
Off-Center Strike	Rare	$100 – $500
Planchet Flaws	Moderate	$20 – $75

Tips for Selling Your Montana Quarters

If you discover that your Montana quarter is one of the valuable “S” mint marks or a high-grade silver version, your next step is determining where to sell. Local coin shops are convenient, but they usually offer “wholesale” prices so they can turn a profit.

For the highest return, collector platforms or online auctions are your best bet. Always ensure the coin is protected in a plastic flip or capsule; touching the surface of a proof coin with your fingers can leave permanent oils that lower the grade and value.

Before listing your coin online, use a valuation tool to get a realistic expectation. Many people mistakenly list standard “P” or “D” quarters for thousands of dollars on eBay, but those coins rarely sell. Knowing the difference between a common circulation coin and a 2007-S specimen is the key to successfully navigating the coin market.

FAQ

Q: Why is my Montana quarter shiny but has no “S” mint mark?

A: It is likely a standard “P” or “D” quarter that has been polished or “plated” by a third party. These are generally considered altered coins and are only worth face value (25 cents).

Q: Can I find a 2007-S Montana quarter in my pocket change?

A: While rare, it does happen! Sometimes people spend proof sets by mistake. These are called “Circulated Proofs.” They are worth more than 25 cents, but less than a pristine proof set coin.

Q: How can I tell if my 2007-S is the silver version without a scale?

A: Look at the edge of the coin. A silver quarter will have a solid silver/white edge. A clad quarter will have a visible copper-colored stripe around the middle of the edge.

Q: Is the 2007-S Montana quarter a good investment?

A: Silver proofs are excellent for long-term holding because they combine numismatic (collector) value with the intrinsic value of silver bullion. Clad proofs usually remain stable in price but don’t see massive growth unless they are graded PR70.