hi im just want to say that it is fon on one half of the coin
The Australian non-commemorative 50 cent coin is the only current coin that has the Australian Coat of Arms on the reverse. Prior to decimalisation, the Florin (Two Shillings) and the Sixpence had the Australian Coat of Arms on the reverse, and from 1910 to 1936 the Shilling and the Threepence had the Australian Coat of Arms on the reverse.
There were no Australian commemorative coins issued in 1979. The only Australian decimal coin to have the Coat of Arms on it is the non-commemorative 50 cent coin.
Most Australian pre-decimal silver coins featured the Australian Coat of Arms at different times, and so does the non-commemorative 50 cent coin. The Australian Coat of Arms features a kangaroo and an emu. Please narrow down the possibilities with a year and a denomination.
If the coin has a "Coat of Arms" and the words FLORIN - TWO SHILLINGS, it is probably an Australian coin. The "Coat of Arms" would be supported by a kangaroo and an emu. If your coin is a genuine minting error rather than a trick coin, you may have something of value. A reputable coin dealer will be able to give a valuation based on inspection of the coin.
Apart from the 1966 round 50 cent coin, all Australian 50 cent coins are pretty much the same. The are 12 sided (or dodecagonal) and are made made from 75% copper and 25% nickel giving them a silvery appearance. The edge is plain, they are 31.51mm in diameter and weigh 15.55 grams. All Australian coins have the reigning Monarch on the obverse, currently Queen Elizabeth II, and the Australian Coat of Arms featuring a kangaroo and emu on the reverse. The Australian 50 cent coin is often used as a commemorative coin and the reverse will have a different design. See the link below.
The design on the back of the coin is the Canadian Coat of Arms.
The Presidential Coat of Arms.
Kangaroos are readily identifiable with Australia and also appear on the Australian coat of arms. They are a national symbol. The standard issue (non-commemorative) One Dollar coin features five kangaroos. Some of Australia's bullion coinage also features various species of kangaroo and wallaby.
The normal non-commemorative Australian 50 cent coin has the kangaroo and emu on the reverse as a part of the Australian Coat of Arms. Here's the full list of coins, identifying the reverse design: 1c: feathertail glider (no longer minted) 2c: frill-necked lizard (no longer minted) 5c: echidna 10c: superb lyrebird 20c: platypus 50c: Coat of Arms with kangaroo & emu (non-commerative coins) $1: five kangaroos (non-commerative coins) $2: aboriginal elder The obverse design has the Queen.
suck my winnie
The design of the British one pound coin changes every few years, and many of the designs have been coats of arms, including the Royal Coat of Arms and the coats of arms of various cities in the UK (Belfast, Edinburgh London, etc.)
Nobody keeps a list, but it would be a fair bet that many thousands of coins are damaged either deliberately of accidentally each year. As coins are returned to the bank or the Royal Mint, staff weed out damaged or worn coins and recycle them.