Usually. A coin in Proof condition is almost always more valuable than the same coin in Uncirculated condition, but exceptions do exist.
are diamonds more valuable than emeralds
Yes, by weight, diamonds are more valuable than gold.
All proof silver dollars are silver dollars, but not all silver dollars are proofs. That's because proof coins are specially struck for collectors, while (at least up till 1935 in the US) regular silver dollars were struck for use in ordinary commerce. Please see the Related Question for more details.
YES
No regular polygon can have an interior angle of 180 degrees or more. No regular polygon can have an interior angle of 180 degrees or more. No regular polygon can have an interior angle of 180 degrees or more. No regular polygon can have an interior angle of 180 degrees or more.
Proof coins are struck on specially prepared and polished dies and are hand finished after striking to give the coin a mirror like finish. A Proof coin to purchase brand new from the Mint, would cost significantly more than its face value, simply because it takes more time and effort to produce them. On rare occasions, an uncirculated coin may be worth more than the equivalent Proof coin because the uncirculated coin is rarer or more sought after by collectors than the equivalent Proof coin.
It depends on the coins date and mintmark. Modern DCAM Proof coins are very common and so are Mint State coins.
You can bring them to a coin dealer but you will get more selling them on EBay. Most sets are not very valuable. you can easily Google the year and get the value.
It depends on what type of coin, year struck, how many have been certified and who graded it. Just because a coin has been graded as a perfect Proof or Mint State example does not mean one type is more valuable than the other.
Supply and demand, think about the date 2001 or to be more specific 9-11-01
yes
Just because a coin was struck at the Denver Mint does not make it more valuable. But some D mint coins are more valuable, it depends on the date, denomination and condition of the coin.
yes
Yes, but that would be pretty dumb. Proof quarters are specialy made coins that are worth more than regular quarters. All proofs have the mintmark S on the coin.
According to online furnace price guides, the cheapest and most cost-effecient maker of electric furnaces is Goodman MFG which has lowest wholesale price, and relatively decent installation price.
These coins are no longer in circulation, but unless they are part of a Proof or Uncirculated mint set or are individual Proof or Uncirculated coins and in absolute mint condition, they are worth 1 cent. The most valuable Australian general circulation 1 cent coin would be the 1968 coin which, uncirculated and in absolute mint condition might fetch up to $28 AUD. There were 19.93 million minted. A reputable coin dealer will be able to give a more accurate valuation.
Proof coins are always worth more than the circulating coins they resemble. Mint collector coins are different than circulating coins and need to be valued differently. Mint coins can come with several various types of surfacing, proof being one, bullion, burnished and brilliant uncirculated the others. The $50 gold coin has no circulating counterpart. It does have a similar brilliant uncirculated counterpart however. While ordinarily proof coins are more valuable than similar brilliant uncirculated coins this is not always the case. The lower amounts of brilliant uncirculated coins minted can cause these to become more valuable than the proof variety for the same year. 1986 had a relatively low minting of brilliant uncirculated collector mint coins and they are, for this and a few other years only, more valuable than the proof varieties. As is always the case with collectible coins, condition affects value. Hence any collectible coin needs an accurate assessment of condition before a specific value can be assigned. Values for these type collector coins are represented in "The Red Book" a semiannually published book listing US coin values.