Mirror Finish - When the blank and die are polished prior to striking, it produces a coin with a highly reflective surface. Usually only seen on the field area of proof coins or to a lesser extent perhaps to the first coins struck with a new die.
matte proof: A type of proof strike that has a sandblasted appearance as opposed to a typical mirror finish
mint: a facility that produces coins ...
mirror finish on both sides. This proved to be very confusing to the
public because they found it extremely difficult to identify the Proof coins
from the uncirculated ones. Even today, many coin dealers, both in the ...
The dies that stamp the coins are polished to a mirror finish. The planchets, the discs of metal the coins are made from, are polished to a mirror finish. The resulting coin is almost more than perfect; it is almost a work of art.
A proof like coin in which the polished mirror finish is evident in both field and devices, except for the lettering, the date, and the mint mark.
Modern US proof coins are often treated with chemicals to make certain parts of the design take on a frosted appearance, and the fields taking on a mirror finish.
This means that Krugers are minted from a copper-gold alloy, as the copper gives the coin greater durability. Apart from the mirror finish, ...
The O after the year stands for Orleans mint. A proof coin is a specially made coin with a mirror finish, while 65 is the coin's grade.
Proof
A coin struck twice or more from specially polished dies and polished planchets. Modern proofs are prepared with a mirror finish. Early 20th century proofs were prepared with a matte surface.
The Gold Buffalo proof coins have an attractive highly reflective cameo mirror finish. This is achieved by striking a specially burnished blank multiple times with a die that has been sandblasted to add texture.
A final polish to produce a brilliant mirror finish is achieved with a dental drill covered with a soft pad. Next, the surface of the die is covered with clear tape and a scalpel is used to expose the design areas.
Some of the coins did result in a full mirror finish and Proof like appearance. The Special Mint Sets present a good opportunity for collectors looking for variety.
There were two sets struck in that year, a long set (containing the five and two-pound coins) and a short set (excluding the five- and two-pounds) These proofs werestruck in mirror finish and show George V on the obverse facing right.
These highly perfected dies are created with the greatest of care and attention. Many hours are taken sand blasting and hand polishing them to a mirror finish. A job that takes great talent and experience.
 See also: Struck, Mirror, Coin, Proof, Mint
  
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