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.
A Proof coin is a particular issue of a coin not a grade of condition.
The term "proof" has to do with how the coin was produced in the first place, rather than the condition of the coin.
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
Proof isn't a grade; it describes a process by which collectible coins are specially minted using high-pressure presses and highly polished dies, resulting in a very sharp image and mirrorlike surface. Please see the Related Link for a full explanation from the U.S. Mint.
It's a collectors item the us mint produces
It is the highest grade of proof coin
A Proof coin is a particular issue of a coin not a grade of condition.
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.
It has a value from $5 in the lowest proof grade [Proof 60] to $375 in the highest proof grade [Proof 70]
PF-65 = Proof-65 a grade that can be given a proof coin.
AU means almost uncirculated which is a grade for the coin, depending on the grade on the coin and the year of it, the value of the coin can be from $25 for the most common and lowest grade dollars all the way to $575,000 for the second highest grade, most rare silver dollar(1893S)(no proof 70 silver dollar has ever been found)
See related answers.
pf means proof! and 69 is the grade. grade from 1-70.
PF-69 is not a value, it's a grade. But it does affect the value, the higher the grade the more value a coin has. A PF-69 coin is one grade below a "Perfect" proof coin.
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.
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