It would say so on the box or the packaging it came in.
Alternatively, a Proof FDC coin is not intended for circulation and would have a very fine finish to the coin with none of the dents or scratches associated with general circulation coins.
With "Matt" coins, the highlights or raised areas of the design, would have a finely granulated finish which would contrast with the mirror like finish of the flat surfaces.
KG VI means King George VI. A "Matt Proof" coin is a process where the surface of the coin is deliberately finely granulated as distinct from the usual mirror like surface of "Proof" coins with frosted highlights. The flat surfaces will have a satin like appearance. FDC is an abbreviation for Fleur du Coin. It refers to a "Proof" coin that has been hand finished.
The 1927 British Florin (Two Shillings) was not issued as a general circulation coin, it was only released as a "Proof FDC" and a "Matt Proof FDC" coin and there were only 15,000 minted. The Matt Proof FDC coin is described as being of the highest rarity. The Proof FDC coin would perhaps be described as being scarce.
A "Matt (or Matte) Proof FDC" coin is one that is struck on specially prepared and polished dies, and the coins further hand finished. On modern coins, the highlights would be finely granulated giving the coin a sharp contrast between the flat surfaces and the image. On 19th century coins, the surface might have been finely granulated giving the coin a sharp contrast between the flat surfaces and the image.
The British Millennium Crown (Five Pound) coin was issued dated both 1999 and 2000. The gold "detailing" to which you refer would be the British Isles coloured with 22 carat gold(?) on the 2000 coin only. Issues of the 1999 coin included a cupro-nickel specimen in a presentation folder, a Proof in silver FDC coin and a Proof in gold FDC coin. Issues of the 2000 coin included a cupro-nickel specimen in a presentation folder, a cupro-nickel Proof FDC coin, a Proof in silver FDC coin and a Proof in gold FDC coin. The 2000 issue also included a cupro-nickel specimen with a "Dome" mintmark in the inner ring at the 3 o'clock position, in a presentation folder.
It should say so on the packaging it came in. A "Proof FDC" coin is struck with a specially prepared and highly polished die and the flat surfaces of the coin have a mirror like finish. A "Frosted" coin is a Proof FDC coin that has the raised parts of the design sandblasted of treated with acid to give a "Matt" appearance and make the raised design stand out against the mirror like finish of the flat surfaces. The extra work put into a Proof coin is reflected in the price you pay for it. They are always significantly more expensive than regular uncirculated or specimen coins. Pictures of a specific coin are difficult to come by. The coin shown in the related link below shows a "Proof" coin.
FDC applied to coins means "Fleur Du Coin" and usually refers to Proof coins. They are made almost exclusively for investors and collectors. A coin designated as "FDC" means that it has the best possible finish and is the finest specimen of the coin possible to make (when it left the mint). A Proof FDC coin is made from specially prepared and polished dies, it may be hand finished and could be made from the same metals as the equivalent circulating coins or, a variety of precious metals such as silver, gold or platinum, amongst others. Proof FDC coins are always suitably packaged to protect the coin and the finish, and will be priced well above their face value.
A "Matt (or Matte) Proof FDC" coin is one that is struck on specially prepared and polished dies, and the coins further hand finished. On modern coins, the highlights would be finely granulated giving the coin a sharp contrast between the flat surfaces and the image. On 19th century coins, the surface might have been finely granulated giving the coin a sharp contrast between the flat surfaces and the image.
A "Proof" coin is the same as its general circulation counterpart, but is one that is not intended for general circulation and is very highly polished. They are sold at a price that reflects the work put into them. A "Matt Proof" coin is a process where the surface of the coin is deliberately finely granulated as distinct from the usual mirror like surface of "Proof" coins with frosted highlights. The British 1937 Florin (Matt Proof FDC) is of the highest rarity and only two are known to exist, being minted only for display purposes.
A "Matt Proof" coin is a process where the surface of the coin is deliberately finely granulated as distinct from the usual mirror like surface of "Proof" coins with frosted highlights. The flat surfaces will have a satin like appearance. FDC is an abbreviation for Fleur du Coin. It refers to a "Proof" coin that has been hand finished. Any such coins are usually protectively packaged by the Mint and are sold at a price well above the face value of the coin.
No, the coin was not produced as a "piedfort". Apart from the general circulation coin, it was produced as "Proof in silver FDC" , but it looks almost the same as the general circulation 25 Pence coin, except that it made from .925 silver. See the link below.
A "Matt (or Matte) Proof FDC" coin is one that is struck on specially prepared and polished dies, and the coins further hand finished. On modern coins, the highlights would be finely granulated giving the coin a sharp contrast between the flat surfaces and the image. On 19th century coins, the surface might have been finely granulated giving the coin a sharp contrast between the flat surfaces and the image.
British decimal Half-Sovereigns are minted annually in most years as a non-circulating Proof FDC gold bullion coin. The last pre-decimal Half-Sovereign minted was issued in 1937 as a non-circulating Proof FDC coin.