Proof refers to its finish not it's grade. A proof can be scratched if not properly taken care of but it will always be a proof. Proof blanks are specially treated, hand polished, and cleaned to ensure high quality strikes. The blanks are then fed into the presses fitted with specially polished dies and struck at least twice. The coins are the specially packaged to showcase and preserve their exceptional finish.
A Proof coin is a particular issue of a coin not a grade of condition.
A proof grade can not be given to a uncirculated (Mint state) coin. The term Proof is actually refers to a method of manufacturing, not a grade. But proof coins are identified by the by a prefix of PF before the grade and mint state are MS
The term "proof" has to do with how the coin was produced in the first place, rather than the condition of the coin.
No. Proof is a type of coin, not a grade. Most coins made are meant for circulation, but some are proof varieties, which are made with a slightly different process to make them much more shiny and are sold to collectors. The highest grade using the Sheldon Scale is MS-70. MS stands for mint state, and it's on a scale from 1 to 70.
It's a collectors item the us mint produces
A Proof coin is a particular issue of a coin not a grade of condition.
It has a value from $5 in the lowest proof grade [Proof 60] to $375 in the highest proof grade [Proof 70]
A proof grade can not be given to a uncirculated (Mint state) coin. The term Proof is actually refers to a method of manufacturing, not a grade. But proof coins are identified by the by a prefix of PF before the grade and mint state are MS
PF-65 = Proof-65 a grade that can be given a proof coin.
pf means proof! and 69 is the grade. grade from 1-70.
See related answers.
Even with a Proof coin grade drives value. So from $3,000.00 to $20,000.00.
The term "proof" has to do with how the coin was produced in the first place, rather than the condition of the coin.
Proof SACAGAWEA coins run from $1.75 to about $10.00 depending on the DATE an grade.
It is the highest grade of proof coin
No. Proof is a type of coin, not a grade. Most coins made are meant for circulation, but some are proof varieties, which are made with a slightly different process to make them much more shiny and are sold to collectors. The highest grade using the Sheldon Scale is MS-70. MS stands for mint state, and it's on a scale from 1 to 70.
Spectroscopic grade is usually the highest purity. I don't think "grade" is the word you really wanted to use, though. If you're asking what the highest proof value of any consumer-grade alcohol, it varies by state. The azeotrope at about 190 proof is the highest I've ever seen for alcohol intended for drinking purposes, but some states restrict proof content down to the 160 range.