We spotlight the rarest and most extraordinary coins—and this 1971 Eisenhower dollar prototype stands out as a numismatic marvel. Read on to discover why collectors eagerly shelled out $264K for this striking historical gem.
Key Identification Features
Prototype Condition
- Struck at the Philadelphia Mint, intended as a pre-production design in January 1971 the-sun.com+8the-sun.com+8the-sun.com+8
- Not released to the public—only a handful of prototypes were made and later destroyed

Minting Details
- First attempts at striking large copper-nickel planchets damaged the gods, prompting updates to master dies en.wikipedia.org+1en.wikipedia.org+1
- Exhibits higher relief, especially visible on proof-style examples

Historical Context
Two known 1971-S prototype coins were certified and survive — all others were ordered destroyed the-sun.com+8en.wikipedia.org+8the-sun.com+8
The 1971 production marked the final debut of the iconic Eisenhower dollar series, designed by Frank Gasparro the-sun.com+10en.wikipedia.org+10the-sun.com+10
Auction Results & Market Value
- Sale price: $264,000 at public auction the-sun.com+1the-sun.com+1
- Why so valuable:
- Extremely low mintage (just a few known prototypes)
- Iconic U.S. coin design
- First strikes from a new large-format dollar series
Authentication Protocol
Die Markers – Compare to Philadelphia prototype die variety
Relief Examination – Higher detail vs. circulation strikes
Mintmark & Planchet Study – Confirm “S” mint marking below date
Grading Validation – PCGS/NGC confirmation of prototype status
Provenance Check – Auction or certification documentation
Why This Commands Six Figures
Only two certified examples known
Prototype rarity—nearly all others destroyed
Highly sought-after among Eisenhower design collectors
Monumental piece marking the transition to the largest dollar coin
What to Do If You Have One
- Send to PCGS or NGC with detailed photography
- Compare against authenticated prototype attributes
- Consult with Ike-Dollar specialists for appraisal and auction guidance