Common state quarters contain 0 silver, however there were special silver proof sets made for collectors, also some of the home shopping channels sold quarters plated in gold,silver & platinum.
can you buy state quarters
The current plan is for 6 territorial quarters to be produced in 2009. In 2010, the plan is (or at least was) for 5 coins per year to commemorate one national park in each state (and territory?), effectively extending the "State Quarter" program to 2019 or 2020.
With fractions, we call it the least common denominator. In this case, it's 12.
No actually it is very common. I would. I do not think it's nerdy it's cool! :)
The last state quarters were released in 2008.
You have a complete collection of 50 state quarters, CONGRATULATIONS!
Any of the state quarters struck of circulation have face value only.
Yes, you can sell state quarters.
Heroin
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.
In 2007 state quarters were issued for Montana, Washington, Idaho, Wyoming, and Utah.