The Record-Setting Coin
A 1980-S Susan B. Anthony Dollar graded PCGS PR-70DCAM sold for $7,115,000 – the only 1980 coin to ever break the million-dollar barrier. Here’s how to spot this legendary error:
Key Identification Features
- Mint Mark Verification
Must show “S” mint mark (San Francisco)
No “P” or “D” mint mark coins qualify - Error Characteristics
- Double Struck Obverse: Visible doubling on portrait rim
- Misaligned Die: 15% off-center secondary impression
- Broken Collar: Irregular edge reeding pattern
- Proof Specifications
- Mirror-like fields (deep cameo)
- Frosted devices (letters/portrait)
- Weighs 8.1g (verify with precision scale)
How to Spot the $7 Million Error
Step 1: Surface Inspection
- Use 10x magnification to check for:
Dual concentric rings around edge
“Ghost” secondary image of portrait
Mismatched alignment between obverse/reverse
Step 2: Edge Examination
- Authentic error shows:
Incomplete reeding (smooth sections)
Variable thickness (2.8-3.1mm)
No seam lines (casts are automatic fakes)
Step 3: Weight & Balance Test
- Must meet exact specifications:
8.1 grams (±0.01g tolerance)
26.5mm diameter
2.0mm thickness at center
Comparison With Normal 1980 Coins
| Feature | $7M Coin | Normal Coin |
|---|---|---|
| Strikes | Double struck | Single strike |
| Alignment | 15° misalignment | Perfectly centered |
| Edge | Irregular reeding | Uniform reeding |
| Luster | Deep cameo | Standard proof/business |
| Value | $7,115,000 | $1-$50 |
Warning: Common Fakes
Electroplated copies (wrong weight/sound)
Altered mint marks (microscope reveals tool marks)
Cast replicas (lack proper detail/sharpness)
Verification Process
- PCGS/NGC certification required
- Submit under “Errors & Varieties” service
- XRF metal composition testing
- Provenance research through Mint records
