Valuable 50-cent pieces often come from Australia, especially the 1966 round silver coin, rare commemorative designs like the 1972 (low mintage), 1988 Bicentenary error, or 2000 Millennium 'incused flag', and those with specific minting errors, like the 1979 "double bar", with values ranging from a few dollars to thousands depending on rarity and condition.
Valuable half dollars are typically older silver coins (pre-1965), 40% silver Kennedy halves (1965-1970), specific key dates/mint marks (like low-mintage Walking Liberties or Capped Busts), error coins, or special proof/matte finish issues (like some San Francisco proofs from the 90s). The easiest rule is pre-1971 half dollars have silver content, making them worth more than face value, but look for rare dates in older series like Walking Liberty or Barber, or modern proofs for significant premiums.
However, there are some coins that can increase their value thanks to the practice of coin-collecting. Such is the case of the 50-cent coins called “Walking Liberty.” These coins are among the most sought after by coin hunters thanks to their artistic design and the history they represent.
Few circulating U.S. coins are as unique as the 1976 Bicentennial Kennedy Half Dollar. Its dual date, single year reverse selected by public competition, optional silver composition, and role as a gateway coin combine to make it more than pocket change.
1776-1976 Half Dollar Mint Error (struck 80% off center) NGC MS65. An "off-center" half dollar, or any coin for that matter, refers to a coin that was struck by the minting machinery in a way that the design is not perfectly centered on the coin's surface.
Valuable half dollars are typically older silver coins (pre-1965), 40% silver Kennedy halves (1965-1970), specific key dates/mint marks (like low-mintage Walking Liberties or Capped Busts), error coins, or special proof/matte finish issues (like some San Francisco proofs from the 90s). The easiest rule is pre-1971 half dollars have silver content, making them worth more than face value, but look for rare dates in older series like Walking Liberty or Barber, or modern proofs for significant premiums.
This 'rare' Penny dates from 1971, when Britain switched from the 'old money' of Pounds, Shillings, and Pence to a new decimal system. The Royal Mint reports that 1,521,666,250 1p coins were issued in 1971 to replace the old 'pre-decimal' coinage that was being withdrawn.
1964 and Earlier: All half dollars minted in 1964 or before are 90% silver. This includes Franklin Half Dollars and Walking Liberty Half Dollars. These coins are always worth much more than 50 cents, based on the current price of silver. 1965 to 1970: Kennedy Half Dollars from these years are 40% silver.
The 50-cent coin that can be worth around $15,000 is the rare 1988 Australian 50c error coin, mistakenly struck with the standard Coat of Arms instead of the commemorative First Fleet design, with only a couple known, though more might be found; it's a "mule" error from the Royal Australian Mint, making it extremely valuable to collectors.
Other rare 50 cent coins to look for include those from 1985 and 1993, which were other low mintage years. In 1985, only one million 50 cent coins were produced by the Mint making them worth between $15 and $40 each. In 1993, there were also only one million 50 cent coins made.
The most valuable Kennedy Half Dollars include the 1964 SMS (Special Mint Set) coin, which can be worth thousands of dollars, and the 1964-D Doubled Die Obverse variety. Other valuable examples are the 1970-D, 1998-S Matte Proof, and the 1964 Proof coins.
In Australia in 1977, the Royal Australian Mint produced a special circulating commemorative 50 cents coin to celebrate the 25th anniversary of the accession of Queen Elizabeth II. This silver jubilee issue was intended to be the only design for the 1977-dated 50 cents coins produced that year.
Errors on the 1966 Australian round 50 cent coin, a sought-after silver coin, are quite rare but typically involve planchet flaws, like deep cracks (lamination errors) from trapped gas or poor alloy, or strike-through errors, where the coin was struck through foreign material, sometimes causing a double rim or other markings on the design. Other less significant variations, like the double bar behind the Emu, were part of the original design and not considered true errors.
Interesting 1971 50 cent with the obverse struck through foreign material (perhaps oil) resulting in an extremely poor strike. Most of the obverse lettering is completely missing.
Kennedy half-dollar coins are not rare; most are worth only their face value of 50 cents. However, some are more valuable, depending on the year they were minted and their condition. For example, a Kennedy half-dollar coin minted in 1970 and in uncirculated condition is worth about $8.
In general, 1972 Kennedy half dollars are not very rare. But some types are more valuable than others: Coins with errors or that look brand new are more valuable. Coins from the Denver (D) or San Francisco (S) mints are better for collectors.
Rare Half Dollar Coins to Search For
While you may be tempted to polish your coins to make them look shiny and new, proceed with caution. Polishing and/or cleaning coins can reduce their value. Older coins that show deep age coloration are more desirable than coins whose surfaces have been stripped away by improper polishing or cleaning.
Storage tips: Place coins in inert holders or coin flips to prevent contamination.
Significance: Mint errors such as off-center strikes, double dies, and other anomalies can make these coins more valuable.
The bicentennial Kennedy Half Dollar features a 1776-1976 date on the obverse and a portrait of Philadelphia Pennsylvania's Independence Hall with the words "200 YEARS OF FREEDOM" on the reverse of the coin to celebrate the 200th anniversary of the United States of America.