The Kennedy Half Dollar, introduced in 1964 to honor President John F. Kennedy, has become a favorite among coin collectors.
While many of these coins are common, certain mint errors have transformed ordinary half dollars into highly sought-after treasures.
Identifying these errors can be both exciting and financially rewarding. Below is a detailed exploration of the top 10 Kennedy Half Dollar errors that could be worth a significant sum.
1. 1964 Accented Hair Proof
In 1964, the initial proof coins featured a distinctive hair design above Kennedy’s ear, known as the “Accented Hair” variety.
This design was modified early in production, making the original version relatively scarce. Collectors value these coins, especially in high grades, with some fetching up to $3,100.
2. 1964 Special Mint Set Strike
The 1964 Special Mint Set (SMS) Strike coins are unique due to their satiny finish and sharp details. These coins were not released for general circulation and are exceedingly rare. One such coin graded SP68 sold for $156,000, highlighting its desirability among collectors.
3. 1970-D Overstruck on 40% Silver Planchet
In 1970, some Denver-minted half dollars were mistakenly struck on leftover 40% silver planchets intended for earlier issues.
These error coins are rare, and their silver content adds to their value. High-grade specimens can command prices upwards of $7,495.
4. 1974-D Doubled Die Obverse
The 1974-D Doubled Die Obverse features noticeable doubling on the inscriptions, particularly “LIBERTY” and the date.
This error resulted from a misalignment during the die creation process. Coins exhibiting strong doubling can be valued at $50 or more, depending on their condition.
5. 1968-S Proof with Inverted Mint Mark
Some 1968-S proof coins display an inverted “S” mint mark, a result of the mint mark punch being applied upside down.
These coins are rare and sought after by error enthusiasts. Depending on the coin’s grade, values can range from $20 to $100.
6. 1982 No FG Initials
On the reverse of the 1982 Kennedy Half Dollar, some coins are missing the “FG” initials of the designer, Frank Gasparro.
This omission occurred due to over-polishing of the die. Coins without the “FG” initials can fetch between $20 and $50, with pristine examples commanding higher prices.
7. 1971-D Struck on 40% Silver Planchet
Similar to the 1970-D error, some 1971-D half dollars were erroneously struck on 40% silver planchets. These coins are distinguishable by their weight and silver appearance. High-grade examples have been known to sell for $13,000.
8. 1966 Misaligned Die
Misaligned die errors occur when the obverse and reverse dies are not properly aligned, resulting in an off-center strike.
The 1966 Kennedy Half Dollar is known for such errors. Depending on the severity of the misalignment, these coins can be valued between $50 and $150.
9. 1972-D No FG Initials
Similar to the 1982 error, some 1972-D half dollars are missing the “FG” initials on the reverse. These coins are relatively scarce and can command prices ranging from $40 to $100, depending on their condition.
10. 1964-D Repunched Mint Mark (RPM)
Repunched mint marks occur when the mint mark is stamped more than once in misaligned positions. The 1964-D Kennedy Half Dollar with a repunched “D” mint mark is a notable example.
Collectors may pay between $20 and $75 for these coins, with higher grades attracting premium prices.
Below is a summary table of these valuable errors:
| Year | Mint Mark | Error Type | Approximate Value |
|---|---|---|---|
| 1964 | None | Accented Hair Proof | Up to $3,100 |
| 1964 | None | Special Mint Set Strike | $156,000 |
| 1970 | D | Overstruck on 40% Silver Planchet | $7,495 |
| 1974 | D | Doubled Die Obverse | $50+ |
| 1968 | S | Inverted Mint Mark | $20 – $100 |
| 1982 | None | No FG Initials | $20 – $50 |
| 1971 | D | Struck on 40% Silver Planchet | $13,000 |
| 1966 | None | Misaligned Die | $50 – $150 |
| 1972 | D | No FG Initials | $40 – $100 |
| 1964 | D | Repunched Mint Mark (RPM) | $20 – $75 |
Note: Values are approximate and can vary based on coin condition and market demand.
The Kennedy Half Dollar series offers a fascinating array of errors that can significantly enhance a collector’s portfolio.
From doubled dies to missing initials, these anomalies not only tell a story of minting mishaps but also present lucrative opportunities for enthusiasts.
Regularly inspecting your coins for these errors could potentially lead to discovering a hidden gem worth a substantial amount.
FAQs
How can I authenticate a Kennedy Half Dollar error coin?
Consult a professional coin grading service like PCGS or NGC for authentication and value assessment.
Are all Kennedy Half Dollars valuable?
No, only specific error coins or rare variations hold significant value.
Where can I sell my Kennedy Half Dollar error coin?
You can sell through auction houses, coin dealers, or online marketplaces specializing in rare coins.
I have a 1996-P silver Kennedy.half dollar that has a planchet error the rim is like a sacagawea dollar and I believe it was mistakenly minted with the sacagawea planchet for sale this is a huge error. What’s it worth?
Where can I get a new coin magazine? At least a 2024 or close as possible?