While most 20 cent coins are simply used as spare change, some have turned out to be astonishingly valuable. These rare coins are highly sought after by collectors and numismatists due to their unique errors, low mintage, and historical importance.
Shockingly, a few of them are still in circulation today—meaning you could be holding onto a coin worth over a million dollars without even knowing it!
Let’s uncover the top 5 rare 20 cent coins that are worth up to $1.2 million and could still be found in everyday change.
1. 1876-CC Twenty Cent Coin – Up to $1.2 Million
The 1876-CC (Carson City) 20 cent coin is one of the most legendary rarities in American coinage history. Struck at the Carson City Mint, only a small batch of coins were produced before the denomination was discontinued.
- Known specimens: Around 20 exist today.
- Value in top condition: Ranges between $900,000 to $1.2 million.
- Why it’s rare: Almost the entire mintage was melted down. Surviving coins are extremely scarce.
Even a moderately preserved version of this coin could easily fetch hundreds of thousands.
2. 1966 Australian ‘Wavy Baseline’ 20 Cent Coin – Up to $4,000
During the introduction of decimal currency in Australia, a minting error in 1966 led to a rare version of the 20 cent coin known as the “wavy baseline” variety.
- Identifying feature: A distinct wavy line at the base of the number “2” in “20”.
- Market value: Up to AUD 5,500 (~USD 4,000).
- Why it’s rare: It was a result of a die flaw and occurred in a limited run.
These coins are still being discovered in coin jars and circulation across Australia.
3. 1875-S Twenty Cent Coin – Up to $10,000
Although not as rare as the 1876-CC version, the 1875-S twenty cent coin from the San Francisco mint holds its own value in the numismatic world.
- Estimated value (uncirculated): Around $5,000 – $10,000.
- Why it’s valuable: Lower production figures and historical significance from the short-lived 20 cent denomination (used from 1875–1878).
In circulated condition, these can still bring in hundreds to thousands depending on grade.
4. 1987 Singapore 20 Cent Coin – Collectible Value
This coin isn’t worth millions, but it’s gaining value fast among collectors due to limited circulation and historic design.
- Design: Features the Changi Airport control tower, a symbol of Singapore’s development.
- Why it’s collectible: It was only minted for one year with a relatively low mintage.
- Current value: In mint condition, these coins are selling for several hundred dollars.
Collectors across Asia are especially driving up demand for this coin.
5. 2005 Australian ‘Coming Home’ 20 Cent Coin – Highly Sought After
This commemorative coin was released to mark the 60th anniversary of the end of World War II, symbolizing Australian soldiers returning home.
- Special editions: Certain versions have low mintage numbers or minting errors.
- Market value: Some examples have sold for $100–$1,000, depending on condition and error type.
Although more recent, this coin holds strong emotional and historical significance, driving up its value.
Rare 20 Cent Coins Value
| Coin Name | Year | Key Feature | Estimated Value |
|---|---|---|---|
| 1876-CC Twenty Cent Coin | 1876 | Carson City Mint, very low mintage | $900,000 – $1.2 million |
| 1966 ‘Wavy Baseline’ Australian Coin | 1966 | Wavy line under the “2” | Up to $4,000 |
| 1875-S Twenty Cent Coin | 1875 | San Francisco Mint, historic coin | $5,000 – $10,000 |
| 1987 Singapore 20 Cent Coin | 1987 | Changi Airport design | Up to several hundred USD |
| 2005 ‘Coming Home’ Australian Coin | 2005 | WWII commemorative design | $100 – $1,000 |
Could You Have One of These?
It’s surprisingly possible. Coins like the 1966 wavy baseline or the 2005 commemorative editions can still be found in jars, wallets, or passed along in daily transactions. Taking a closer look at your coins could literally pay off.
What Makes These Coins So Valuable?
Several factors contribute to a coin’s value:
- Rarity (low mintage or surviving population)
- Historical relevance or commemorative design
- Minting errors or variations
- Condition and grade
- Demand among collectors
Finding a valuable coin doesn’t always mean digging through ancient treasure chests. Sometimes, it’s as simple as checking your spare change. These rare 20 cent coins prove that incredible value can lie in the smallest and most unexpected places.
Keep an eye out—your next million-dollar find might just be in your pocket.
FAQs
How can I tell if I have a valuable 20 cent coin?
Look for unusual features like mint marks, wavy lines, or historical designs. A magnifying glass and comparison with online coin guides can help. If you suspect rarity, get it professionally graded.
Are all 20 cent coins from 1966 valuable?
No. Only the wavy baseline variety is rare and valuable. Most 1966 20 cent coins are common.
Can I still find these coins in circulation?
Yes! Especially coins like the 1966 and 2005 editions. The ultra-rare 1876-CC is less likely to be found casually.