The Mint issued clad and silver State Quarters (5-coin) proof sets. Post new question as to what type of sets.
All circulating U.S. state quarters are worth 25 cents.
They're generally only worth face value. A completely uncirculated coin might be worth a little more to a collector.
If your proof set has 9 coins it is worth $15. If it has 5 state quarters it is worth $9. If it is a regular silver proof set it is worth $144.
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.
With the exception of certain proof sets, they are only worth the face value of the coin.
it is around 350 to 400 if its in good condition. Only face value. The only sets of these quarters that may be worth more are complete rolls of uncirculated coins in unpoened wrappers with documentation. Proof sets are worth a bit more but because the state quarters are so common now, they are really only worth face value.
A 1999 US Mint 50 State Quarters Proof Set is worth about five US dollars. However, a 1999-2008 US Mint 50 State Quarters Proof Set is worth about 100 US dollars.
Technically they are worth 25 cents. 1964 was the last silver was used to make quarters. So unless they're uncirculated or proof no, they're worth 25 cents.
The US has never minted gold quarters. A private company took genuine proof quarters and plated them with a thin layer of gold. Unfortunately that means they're altered coins and have lost any numismatic value they had as proofs.
There aren't 112 proof state quarters. There are only 50 proof state quarters, (along with 6 in the DC/US territories). Unless you are meaning you had both the clad (copper-nickel, common) proofs and the silver proof sets. But just about every clad US proof state quarter is worth about $1 or so, silver proof quarters go for about $7-8 or about fifty cents or a dollar above melt value individually.
NO
August 23, 2009 The complete 100 roll sets of State Quarters are selling for about $1200.