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.
MS stands for Mint State, which indicates a coin that has never been circulated and is in uncirculated condition. PL stands for Proof-like, referring to coins with reflective surfaces similar to proof coins. DMPL stands for Deep Mirror Proof-like, representing coins with highly reflective surfaces that closely resemble proof coins.
Proof coins are special coins produced by mints with special dies and polishing to be perfect and to have an extra eye appeal. Thus proof coins are near perfect representations of that particular coin.
Matte proof coins are special proofs that have a grainy "sandblasted" look on the surface. Matte proof coins were sometimes made in the early part of the 1900's. Normal proof coins have a mirror like brilliant surface.
A "Matt" finish means that part of the coin, usually the raised part of the design, is slightly dulled to contrast with the mirror like finish on the flat surfaces of the coin. It is often a feature of Proof coins.
A proof coin is made from a highly polished planchet (blank) and struck twice to produce a highly detailed relief. Proof coins are not put into general circulation.
An "Uncirculated" coin is exactly that. It has never been in circulation and is in mint condition, and in the packaging it was sold in. A "Proof" coin is similar to an "Uncirculated" coin in that it has never been in circulation, but they are made on specially polished dies so that they have a very lustrous and shiny appearance. Proof coins might also be made from a metal other than what the normal coin might be made from, such as gold or silver. Proof coins usually cost a lot more to buy irrespective of what they are made from.
If you mean the 1856 Flying Eagle small cent coins? Proof coins were also struck. It's believed that a total of no more than 3,000 coins (including proof's) were produced. Most of the coins were business strikes.
PR is a grading system used for proof coins
DCAM stands for Deep Cameo and is reserved for proof coins
A "Proof" or "Proof - Fleur Du Coin" coin is one that is struck on specially prepared and highly polished dies. After the coin is struck, it is hand polished to give a mirror like finish. Most modern "Proof" coins have the highlights frosted to give a good contrast. "Proof" coins are made from the same metal as general circulation coins, but are often also made from silver or gold. "Proof" coins are worth a good deal more than their face value and are intended as a souvenir or investment.
Please post new question. Do you mean Three (3) $5.00 coins?
PR is used in terms of grading coins to designate that the coin is proof. For example, a perfect proof coin would be graded as PR-70. A nearly perfect proof coin might be graded PR-68 or PR-69, etc.