Why Is the 1870-S Seated Liberty Dollar So Rare and Worth It

The 1870-S Seated Liberty Dollar is a coin that, by official Mint paperwork, should not exist. No mintage record was ever filed for it, yet somewhere between 9 and 12 genuine examples have turned up over the last century and a half, and one sold at auction for over a million dollars. It is silver dollar collecting's favorite mystery, and it belongs to a series that changed the look of American money for more than 30 years.

This coin is not something you will find in pocket change or even in most advanced coin collections. It sits in a tiny handful of major numismatic collections and museum-grade holdings, and every time one changes hands, it makes news in the coin world.

What Is the 1870-S Seated Liberty Dollar?

The 1870-S Seated Liberty Dollar is a silver dollar struck at the San Francisco Mint with no surviving official production record, making it one of the rarest coins in American history. It carries the "S" mintmark and belongs to the With Motto era of the Liberty Seated Dollar series, which ran from 1866 to 1873.

The coin shows Christian Gobrecht's seated figure of Liberty on the front, resting one hand on a shield and holding a pole topped with a liberty cap. The back shows an eagle with a banner reading "In God We Trust" above it, the phrase that gives the "With Motto" subtype its name. Specialists generally believe around 12 pieces were struck, based on decades of tracking known survivors rather than any Mint ledger entry.

Why Is the 1870-S Seated Liberty Dollar So Rare?

The 1870-S is rare because San Francisco Mint records never show a dollar coin mintage for that year, yet coins with the date and mintmark are real and have been tracked by collectors for generations. That gap between paperwork and physical coins is the whole reason this date is famous.

Nobody knows for certain why the coins exist without a matching record. Some numismatists believe they were struck as small trial or presentation pieces tied to the opening of dollar coinage at the San Francisco branch, since 1870 was the year that mint began striking dollars at all. Others think a short, unrecorded run slipped through without proper documentation, which was not unheard of at smaller branch mints in the 1800s. Either way, the coins that survive are treated as regular-issue pieces, not proofs, even though no striking log backs them up.

How Many 1870-S Seated Liberty Dollars Exist Today?

One major census puts the confirmed population at about 9 coins, while a broader estimate often cited by specialists lands closer to 12 total struck or surviving. Either number places this date in rarefied company among U.S. silver dollars.

To put that in perspective, the far more famous 1804 dollar has a larger known population than the 1870-S in some specialist counts, even though the 1804 dollar gets more headlines and pop-culture attention. That surprises a lot of collectors who assume the most famous rarity must also be the scarcest one. In raw survival numbers, the 1870-S can claim the tighter population.

A coin tied to the F.C.C. Boyd collection carries extra weight in this story. It was reportedly the first 1870-S dollar ever offered at a public auction, giving that specific coin a documented paper trail stretching back generations, something that matters enormously when a coin this rare changes hands.

What Does an 1870-S Seated Liberty Dollar Look Like and Weigh?

An 1870-S Seated Liberty Dollar is a 90% silver, 10% copper coin weighing 26.73 grams, measuring 38.10 mm across, with a reeded edge. It holds 0.7735 troy ounces of pure silver, the same standard used across the With Motto Seated Dollar series from 1866 to 1873.

There are no widely collected die varieties for this date. Seated dollar specialists report a single die pair covering all known genuine examples, so this is treated as one ultra-rare coin rather than a set of varieties to chase.

How Much Is an 1870-S Seated Liberty Dollar Worth?

An 1870-S Seated Liberty Dollar is worth well into six figures at minimum, and top examples have sold for seven figures. PCGS lists an auction record of $1,092,500 for a Brilliant Uncirculated example sold by Stack's back in May 2003, and that record has stood as the benchmark for the date ever since.

Even damaged or repaired examples still bring serious money because so few coins exist at all. Recent market listings for problem pieces, meaning coins with cleaning, scratches, or other issues that keep them from a straight numeric grade, have still landed in the mid-six-figure range. Grade matters, but for a coin this scarce, simply owning a genuine example matters more than most collectors expect going in.

If you compare this to more available Seated Liberty coinage, the gap is stark. Liberty Seated Half Dollars value guides cover a series where common dates trade for modest premiums over melt, while an 1870-S dollar operates in an entirely different market built on population reports and pedigree research rather than typical price charts.

Melt Value vs Market Value: Why Silver Content Barely Matters Here

The melt value of an 1870-S Seated Liberty Dollar is about $51.08 at the time of writing, based on 0.7735 troy ounces of silver at $66 per ounce, but that number is close to meaningless for pricing this coin. Rarity and collector demand set the price, not the silver inside it.

That gap between melt and market value is the whole story with a coin like this. A common-date Seated dollar or a Morgan dollar might trade close to its silver weight when times are tight, but the 1870-S trades on scarcity the way a rare painting trades on the artist and the story behind it, not the cost of the canvas. Checking current gold and silver price charts is useful for everyday bullion decisions, but for a coin this rare, spot price is really just background noise.

For everyday silver dollars, like well-worn Morgan dollars or common-date Seated pieces, melt value and spot price track much more closely. If you are weighing whether a stack of Morgan Silver Dollars is worth more for its silver or its collector appeal, that calculation looks nothing like pricing an 1870-S.

History of the Seated Liberty Dollar Series

The Seated Liberty Dollar ran from 1840 to 1873, designed by Christian Gobrecht, and the 1870-S sits near the end of that run during the years when "In God We Trust" appeared on the reverse. Understanding that timeline helps explain why this one date stands out from thousands of otherwise ordinary Seated dollars.

The 1870-S also marks a milestone for the San Francisco Mint itself, since 1870 was the first year that branch struck silver dollars at all. That timing feeds one theory about the coin's origin: it may have been a small commemorative or trial striking tied to that milestone, rather than a coin meant for regular circulation.

What Are Common Misconceptions About the 1870-S Seated Liberty Dollar?

The biggest misconception is that a missing Mint record means the coin cannot be real, but multiple genuine examples are documented by major grading services and have sold at public auction for decades. A missing paper trail is not the same as a missing coin.

Other misunderstandings show up often among newer collectors:

• Thinking every 1870-S is worth the same as a common Seated dollar, when this date sits in a completely different rarity tier
• Assuming melt value gives a fair starting price, when rarity and demand set the number instead
• Believing it must be a proof-only issue, when it is generally treated as a regular-issue coin despite the record gap
• Assuming any coin dated 1870-S with this design is automatically genuine without expert review

That last point matters more than people think. Because the coin is worth so much, it has attracted alterations and misattributed pieces over the years, which is exactly why expert review carries so much weight for a coin like this.

How Can You Verify an 1870-S Seated Liberty Dollar Is Genuine?

You verify an 1870-S Seated Liberty Dollar by having it evaluated by a top-tier grading service and by researching its ownership history, since problem coins and misattributed pieces are common at this rarity level. Photos alone are never enough for a coin in this price range.

Working with an NGC authorized dealer for grading services on any high-value Seated coin gives you a layer of protection that photos and online listings simply cannot provide.

Tips for Collectors Considering an 1870-S Seated Liberty Dollar

Treat this coin as a long-term collection centerpiece, not a quick flip, and budget for professional grading and research before you commit. Because so few examples exist, patience and documentation matter more than speed.

• Expect many surviving examples to carry "details" grades due to old cleanings or repairs, and know that originality and eye appeal drive price more than a perfect grade alone
• Ask sellers for full ownership history, since a documented pedigree, like the Boyd-related example, can add real value and confidence
• Compare any candidate coin against published die studies rather than relying on a quick visual match
• Understand that a coin this rare rarely trades on open online marketplaces without prior vetting

For collectors building out a broader Seated Liberty set before chasing a rarity like the 1870-S, half dollars from the same design family offer a more affordable entry point into the era's history and design.

If you are shopping for silver dollars at a more everyday price point, or you have older silver coins you are ready to sell, our team works with material across the full range, from common-date Morgan and Peace dollars to rarities like this one. Take a look at what we carry if you are building a collection, and if you have coins or silver to sell, you can mail them in from anywhere in the country or stop by our Salem, Oregon location if you are nearby. Our guide to selling silver coins walks through what that process looks like either way.

Frequently Asked Questions

Sources

1. PCGS CoinFacts - 1870-S Seated Liberty Dollar
2. Newman Numismatic Portal - Heritage Lot Detail
3. PCGS - Coin of the Week Article
4. CoinWeek - Liberty Seated Dollar With Motto 1866-1873
5. CoinWeek - 1870-S Dollar Auction and Pedigree History
6. Seated Dollar Varieties - 1870-S Die Study

Featured image courtesy of PCGS