The 1970s may seem like a relatively recent era in the world of coin collecting, but this decade yielded a handful of U.S. coins that are now worth thousands of dollars. While millions of coins were minted in that decade, only a few became the darlings of numismatists due to minting errors, limited production runs, or rare varieties that flew under the radar of the average American.
For many collectors, the dream is to stumble upon a coin in spare change or a dusty drawer that turns out to be worth a small fortune. With some coins from the 1970s commanding prices as high as $15,000 or more, that dream could be a reality.
In this comprehensive guide, we’ll explore seven of the most valuable 1970s coins, how to identify them, why they are valuable, and what you can expect if you find one.
1. 1970-S Lincoln Cent (Small Date, High 7)
Overview
The 1970-S Lincoln Cent has two main varieties: the small date and the large date. The small date version is significantly rarer and more valuable, particularly in high grades.
Why It’s Valuable
The “Small Date” version has a noticeably higher and more level “7” in the date. Due to its limited production and distinctive features, collectors are willing to pay handsomely for it.
Estimated Value
- Average Circulated: $30–50
- Mint State (MS65+): Up to $3,000
- Proof Version (PR69DCAM): Up to $18,000
2. 1971-S Lincoln Cent (Doubled Die Obverse)
Overview
Doubled dies occur when the coin die strikes the planchet more than once, leading to a duplicated image. The 1971-S DDO is one of the more dramatic examples.
Why It’s Valuable
This error coin displays strong doubling, particularly visible in “LIBERTY” and the date. It’s rare and sought after in pristine condition.
Estimated Value
- MS60: $1,000–2,000
- MS65: $8,000+
- Highest Known Grade: Over $10,000
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3. 1974-S Lincoln Cent (Reverse Brockage)
Overview
A brockage error occurs when a coin is struck with another coin still in the die chamber, leaving a mirror image on one side.
Why It’s Valuable
The 1974-S reverse brockage is an unusual and visually dramatic mint error, making it highly desirable among error collectors.
Estimated Value
- Auction Sale: $11,400
- Market Estimate: $8,000–12,000
4. 1979 Susan B. Anthony Dollar Overstruck on Jefferson Nickel
Overview
This is a multi-denominational error: a Susan B. Anthony dollar coin design was mistakenly struck on a Jefferson nickel planchet.
Why It’s Valuable
Rare and bizarre, this error type is one of the most valuable of the 1970s due to its uniqueness and visibility.
Estimated Value
- Auction Price: $15,275
5. 1971-S Deep Cameo Proof Lincoln Cent
Overview
Proof coins are specially struck for collectors with mirrored backgrounds and frosted designs. The “deep cameo” designation is for exceptionally high-contrast examples.
Why It’s Valuable
The 1971-S Deep Cameo Lincoln cent in pristine condition is scarce and prized by proof collectors.
Estimated Value
- PR69DCAM: $15,000–17,250
6. 1976 Bicentennial Quarter (Mint Error/Silver Composition)
Overview
The 1976 quarter was released to commemorate the U.S. Bicentennial. While common in circulated condition, some were struck on silver planchets or include striking errors.
Why It’s Valuable
Quarters struck on silver or with significant mint errors (such as doubled dies or off-center strikes) can be worth thousands.
Estimated Value
- Silver Planchet Error: $2,000–6,000
- Double Die or Off-Center Strike: $500–2,000
7. 1975 “No S” Proof Dime
Overview
This is arguably the holy grail of 1970s coins. Only two examples are confirmed to exist.
Why It’s Valuable
These dimes were intended to have an “S” mint mark (indicating San Francisco production), but the mark was omitted. A major mint error.
Estimated Value
- Last Sale: $456,000
- Current Estimate: $500,000+
Summary Table
| Coin Description | Type/Error | Estimated Value |
|---|---|---|
| 1970-S Lincoln Cent (Small Date) | Small Date Variety | Up to $18,000 |
| 1971-S Lincoln Cent (Doubled Die Obverse) | Doubled Die Error | $10,000+ |
| 1974-S Lincoln Cent (Reverse Brockage) | Reverse Brockage Error | $8,000–12,000 |
| 1979 Susan B. Anthony Dollar on Nickel | Multi-Denomination Error | $15,275 |
| 1971-S Deep Cameo Proof Lincoln Cent | Deep Cameo Proof | $15,000–17,250 |
| 1976 Bicentennial Quarter (Error/Silver) | Composition/Error | $500–6,000 |
| 1975 “No S” Proof Dime | Missing Mint Mark | $500,000+ |
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Conclusion
While many people assume that only ancient or pre-20th-century coins can be worth significant money, the 1970s proves that even modern-era coins can become extremely valuable. From minting errors to rare varieties, these coins are a testament to how anomalies in production can turn ordinary pocket change into a prized collectible.
If you’re a casual coin holder or a seasoned collector, it’s worth re-examining your stash. You might be sitting on thousands of dollars without even knowing it. Coin collecting, after all, is not just about history—it can also be a surprisingly lucrative venture.
FAQs
Q1: How do I know if my 1970-S Lincoln Cent is the small date variety?
A: Look at the “7” in “1970”. In the small date version, the “7” appears level with the “0”. The digits also appear more tightly spaced.
Q2: What makes the 1975 “No S” Proof Dime so rare?
A: It was mistakenly struck without the “S” mint mark. Only two are known to exist, making it an extreme rarity.
Q3: Can I find these coins in everyday circulation?
A: Most are rare enough that they are unlikely to be found in circulation today, but it’s not impossible. Check proof sets and older collections.
Q4: Where can I sell my rare 1970s coin?
A: Consider auction houses like Heritage Auctions or Stack’s Bowers. You can also approach reputable coin dealers or grading companies like PCGS and NGC.
Q5: Should I clean my old coins before selling them?
A: No. Cleaning coins can reduce their value significantly. Always leave them in their natural condition and consult an expert.
