Most people overlook the dull dollar coins in their change jar—but one 1979-D Susan B. Anthony coin could be worth thousands. Why? Rare mint errors, die clashes, and grading secrets. This guide uncovers what to look for and how to tell if your coin is a jackpot or just pocket change.
The 1979-D Susan B. Anthony (SBA) Dollar is a fascinating piece of U.S. coinage history. While millions were minted in Denver, certain errors and varieties make some specimens highly valuable. This guide explores the key errors, grading factors, and market values of the 1979-D SBA dollar, helping collectors identify rare and valuable coins.
Background of the 1979-D Susan B. Anthony Dollar
The 1979-D SBA dollar was minted in huge quantities, but that doesn’t mean all of them are ordinary. Despite being produced in the hundreds of millions, certain factors like condition, mint errors, and historical context play a key role in value.
Key Facts:
- Mint Location: Denver (“D” mint mark).
- Mintage: Over 288 million were struck, making most circulated examples worth only $1.
- Design: Features Susan B. Anthony’s portrait (Frank Gasparro’s design) and an Apollo 11-inspired eagle reverse.
- Notable Difference: Unlike the 1979-P Wide Rim variety, the 1979-D has no major design variations, but errors can significantly increase value.
Valuable 1979-D Susan B. Anthony Dollar Errors
Error coins occur during the minting process and can make a common coin much more valuable. The following are some of the most sought-after 1979-D SBA dollar errors collectors watch for.
A. Die Clash Errors
- When the obverse and reverse dies strike each other without a planchet, leaving ghostly imprints.
- Example: A 1979-D with a strong die clash (visible moon/Earth imprint on obverse) sold for $440+ in AU58.
- How to Spot: Look for faint eagle or letter outlines on Anthony’s portrait.
B. Double Die Errors
- 1979-D Double Die Reverse (DDR): Shows doubling on the reverse lettering or eagle design.
- Value: Up to $800+ (eBay listings).
C. Off-Center Strikes
- 5–30% Off-Center: Creates a crescent-shaped blank area.
- Value:
- 10% off-center: ~$150
- 30%+ off-center: $500–$1,000 (e.g., a 75% off-center 1979-S sold for $1,000).
D. Clipped Planchet Errors
- Cause: Incomplete metal blank during striking.
- Value: $25–$100, depending on severity.
E. Wrong Planchet Errors
- Struck on a Dime Planchet: Extremely rare; one sold for $10,062.50 (2004 auction).
- Struck on Experimental Alloy: 1999 examples (not 1979-D) have sold for $10,500+.
F. Filled Mint Mark (“Blob D”)
- Weak or over-polished dies cause the “D” mint mark to appear smudged.
- Value: Common, but paired with other errors, it can increase worth.
G. Strike-Through Errors
- Debris on the die creates odd marks on the coin.
- Value: $50–$300, depending on visibility.
Grading & Condition Impact on Value
Grading is one of the most important factors when determining the value of any coin. A high-grade 1979-D SBA dollar, even without an error, can still be worth hundreds or even thousands of dollars.
Value Based on Grade:
| Grade | Value (No Errors) | Value (With Errors) |
|---|---|---|
| MS60 | $5 | $10–$50 |
| MS65 | $25 | $100–$500 |
| MS67 | $350 | $1,000+ |
| MS68 | $10,000 (Only 1 known) | N/A |
- Tip: Coins with a Prooflike (PL) or mirror finish are especially rare and desirable.
How to Identify a Valuable 1979-D SBA Dollar
Even if you’re new to coin collecting, there are a few simple checks you can do to see if your SBA dollar might be worth more than face value.
Steps to Check:
- Check the Mint Mark: A clear “D” above Anthony’s shoulder.
- Inspect for Errors: Look for doubling, off-center strikes, or die clashes.
- Grade the Coin:
- MS65+ (Uncirculated): Sharp details, full luster.
- AU (About Uncirculated): Slight wear on high points.
- Professional Authentication: Submit to PCGS or NGC for certification.
Comparison to Other 1979 SBA Dollars
To truly appreciate the uniqueness of the 1979-D SBA dollar, it’s useful to compare it to its counterparts from Philadelphia and San Francisco.
SBA Dollar Comparison:
| Variety | Mintage | Key Feature | Value (MS67) |
|---|---|---|---|
| 1979-P Wide Rim | Scarce | Thicker rim near date | $1,500+ |
| 1979-S Proof | 3.7M | Deep Cameo finish | $150 (PR70) |
| 1979-D (Regular) | 288M+ | Common, but errors add value | $350 (MS67) |
Where to Sell & Authenticate
Once you’ve identified a valuable coin, the next step is to sell or certify it through a trustworthy platform. Authentication increases trust and can greatly increase the coin’s value.
Recommended Platforms:
- eBay: Listings for error coins (e.g., double dies, off-center strikes).
- Heritage Auctions: Sells high-grade and rare errors.
- PCGS/NGC Grading: Essential for top-dollar sales.
Final Thoughts
While most 1979-D Susan B. Anthony Dollars are worth $1–$5, errors and high grades can turn them into $500–$10,000+ treasures. Don’t overlook:
Key Takeaways:
- Die clashes ($100–$500)
- Off-center strikes ($150–$1,000)
- MS67+ coins ($350–$10,000)
If you suspect you have a rare 1979-D error, consider professional grading to maximize its value.
