Double Eagle Gold Coins

Question by Cindy: US 2 1/2 Dollar Gold Indian eagle coin question?
I have a 1914 D 2 1/2 gold Indian Eagle coin and on the back side of the coin there is a small black circle that appears to be stamped on the coin. The tiny circle is in front of the eagles chest. It is black around the circle and circles the word E Pluribus Unum and there is no ink in the middle. Does anyone know what that spot is? Thanks!

Best answer:

Answer by redlemon65
without seeing it - no.....

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[wprebay kw="1914+gold+eagle" num="0" ebcat="11116"]
[wprebay kw="1914+gold+eagle" num="1" ebcat="11116"]
[wprebay kw="1914+gold+eagle" num="2" ebcat="11116"]

Originally posted 2010-07-16 15:01:24. Republished by Blog Post Promoter

Question by mousey: question about a twenty dollar gold coin 1933?
how do you know the value of this coin? The 1933 Saint-Gaudens Gold Double Eagle. it says in God we trust. thanks.

Best answer:

Answer by the cool viper
if you go to google and type in the name of the coin or also there is a site but dont remember that tells you prices of all old and rear coins. other ways are that you can call gold buyers or antique coins and ask them

Give your answer to this question below!
[wprebay kw="1933+gold+double+eagle" num="6" ebcat="11116"]
[wprebay kw="1933+gold+double+eagle" num="7" ebcat="11116"]
[wprebay kw="1933+gold+double+eagle" num="8" ebcat="11116"]

Originally posted 2010-09-08 11:10:56. Republished by Blog Post Promoter

Question by solcruz: Another conversion question?
In 1933, the United States went off the international gold standard, and the price of gold increased from .00 to .00/troy oz. The twenty-dollar gold piece, known as the double eagle, weighed 33.436 g and was 90.0% gold by mass. (a) What was the value of the gold eagle before and after the price change? (b) How many coins could be made from 2.00in3 of gold (1 troy oz.=31.1 g; d of gold=19.3g/cm3)?

Best answer:

Answer by ltpowers
The value of the gold is its mass times the price.

We know the mass of the coin, but only 90% of it was gold:

mass of gold in the coin = (33.436g * 0.9) = 30.0924g

Now we also need to convert that into troy ounces.

mass of gold in the coin = 30.0924g / (31.1 g/oz.) = 0.967601 troy oz.

Now we can find the value of that much gold before the price change:

Price = 0.967601 troy oz. * .00/troy oz. = .35202

Rounding to three significant digits: .40

That's how much the twenty-dollar gold piece was worth before the price change. .40. Weird, huh?

Anyway, after the price change, the U.S. was no longer on the gold standard. A coin was now worth whatever they said it was worth, instead of how much the gold inside it was worth. So a twenty-dollar gold piece was worth .... exactly twenty dollars. Always and forever. This is a trick question; your classmates will figure the value of the gold after the price change, but that's not what the question asks.

For part b:

You need to figure out the how many cubic centimeters is 2.00 cubic inches:

1 in = 2.54 cm
1 in^2 = 6.4516 cm^2
1 in^3 = 16.387064 cm^3
2 in^3 = 32.774128 cm^3

The density of gold is 19.3g/cm^3. Multiplying by the value above, we get:

19.3g/cm^3 * 32.774128 cm^3 = 632.5406704g. There are about 632.5 grams in 2 cubic inches of gold.

We know from part a) that one double eagle uses 30.0924g of gold. How many times can we cut 30.0924g of gold from a 632.5406704g block?

632.5406704g / 30.0924g = 21.0199476~

That little bit left over is probably due to rounding error, so the answer is 21 coins.

Give your answer to this question below!
[wprebay kw="1933+gold+double+eagle" num="12" ebcat="11116"]
[wprebay kw="1933+gold+double+eagle" num="13" ebcat="11116"]
[wprebay kw="1933+gold+double+eagle" num="14" ebcat="11116"]

Originally posted 2010-10-18 05:36:42. Republished by Blog Post Promoter