Depending or not the seriousness of this thread, let me interject. The rarity + composition of a quarter + plus condition is what the value it. All currency produced in the US never loses its face value, it will always be worth what ever the denomination it is. Now the "collectors" or numismatic price figures the minting and the condition of the individual coin. Like how certain comic books or Video games for that matter are worth more because of when they were made. Now even though a coin can be badly damaged, the metal can still be salvaged and refined. I bought a stack of coins off of someone for face value. I bought 11 $1 coins. Okay so I traded one currency for another. But they were all minted before 1930, so they are .90 silver and are 26.73 grams, worth more than a dollar. So current trading for silver is:
$17.01=silver price / ounce on Mar 12, 2010.
.90 =silver %
$3.359=copper price / pound on Mar 12, 2010.
.10 =copper %
26.73 =total weight in grams
.0321507466=ounce/gram conversion factor
.00220462262=pound/gram conversion factor (see note directly below)
The NYMEX uses pounds to price copper and that means we need to multiply the metal price by .00220462262 to make the conversion to grams. The silver price is based in troy ounces and that means we need to multiply the metal price by .0321507466 to make the conversion to grams.
1. Calculate 90% silver value : (17.01 × .0321507466 × 26.73 × .90) = $13.1563909408
$13.1563 is the rounded silver value for the 1878-1921 silver Morgan dollar on March 12, 2010. This is usually the value used by coin dealers when selling these coins at melt value. However, the total melt value is continued below.
2. Calculate 10% copper value
3.3590 × .00220462262 × 26.73 × .10) = $0.0197942
3. Add the two together :$13.1563909408 + $0.0197942 = $13.1761851408
And thats just the melt value. Some of the numismatic values of some of these dollar coins are ranged $155.00 - $7000.00. So, not bad for $1 coin thats only worth $1