The 1966 wavy baseline 20c is still the most sought after rare Australian 20c coin. The coins are still in circulation, with one person commenting on the TikTok that they had three of the rare coins.
On eBay a number of people have valued the 1966 20c piece with the wavy baseline from anywhere from $160 to $6,500. While the value of these coins seems mouthwatering, they pale in comparison to what some overseas ones have sold for.
Most Australian one cent coins are still only worth 1 cent, so a complete set of Australian 1 cent coins running from 1966 to 1990 is fairly easy to complete in circulated condition.
Quantity Discounts
Weighing 13.28 grams with 0.3416oz of silver it wasn't long before the value of the silver content far outweighed the 50c face value and it was withdrawn from production and replaced in 1969 with the dodecagonal-12 sided shape.
The round fifty cent coin was the highest-denomination and largest diameter coin of the Australian decimal coins, introduced in 1966.
The one cent coin was first introduced with decimal currency on 14 February 1966. The original reverse design of a feather tailed glider has not been changed since the introduction.
1966 Washington Quarter Value
According to the NGC Price Guide, as of June 2023, a Washington Quarter from 1966 in circulated condition is worth between $0.30 and $0.85. However, on the open market 1966 Quarters in pristine, uncirculated condition sell for as much as $5750.
This particular 1966 round 50 cent shows a linear planchet flaw on the obverse of the coin extending fully from one rim to another across the full diameter from the second E in ELIZABETH to the I in Australia.
The 1966 quarter is so common given that the U.S. Mint produced close to one billion of these coins, making their value pretty low. So, in average circulated condition, the value of a 1966 quarter with no mint mark is about 25 to 50 cents, according to the PCGS.
The title of Australia's rarest penny, while many think it's the 1930 penny, actually goes to the ones made at the Melbourne Mint in 1945. Featuring Thomas Humphrey Paget's effigy of King George VI and the jumping kangaroo reverse, only four pennies were produced at the Melbourne Mint that year.
The lack of mint marks on any coins makes the 1966 penny rather unusual. While coins struck at the original mint facility in Philadelphia never had mint marks, 1966 pennies were struck in San Francisco and Denver too. These would usually have been identified by an “S” or a “D” respectively.
The easiest method is to weigh the coin on a calibrated gram scale. The standard clad quarters weigh 5.67 grams and the 90% silver quarters weigh 6.25 grams. You can also use the eye test. Silver quarters are shinier and they don't have any copper or nickel layers showing on the edge of the coin.
On the heads side of each Australian coin there is a picture of Queen Elizabeth II. It also has the words 'Elizabeth II', 'Australia' and the year in which the coin was made. On the tails side of each coin there is an image of something uniquely Australian.
An extremely rare 1930 Australian penny has sold for $60,000 at auction, breaking an Australian record. The coin went under the hammer over the weekend and was bought by a Western Australian bidder.
The 1977 Coat of Arms 50c is the rare one. They were not meant to be minted but 10 of them have appeared. Embrace all the imperfections.
A list of valuable 50c Australian coins is fairly short - most are only worth their face value unless they are in premium grade. One of the first 50 cent piece designs that many people notice in their change are the fifty cent coins struck for the Centenary of Federation - there is one for each state and territory.
"Double die pennies are highly sought after by coin collectors because they are considered a rare and valuable error. The double image on the coin makes it unique and highly prized among collectors."
The average sale price for "quarter 1966 no mint" is $300.00. The lowest current price is $0.99.
The 1966 10 cent minted in London can be found with varying degrees of rotation or upset. It's been determined that it was the obverse die that was rotating during the production run of these coins. This example rotated 270° clockwise or approximately 9 o'clock.
The 1930 penny is one of the rarest Australian coins, due to a very small number being minted, and holds the record as the most valuable copper penny in the world. It is highly sought after by coin collectors, and a 1930 penny in very fine condition can be worth A$45,000 or more.
In 1966 Australian 50 Cent coins were struck and issued in 80% pure silver (known as Rounds). Today these coins are traded as a popular bullion product. Each coin weights 13.28gram of 80% Silver.