If that is a private mint coin, it is probably the weight of the coin.
You need to give the denomination and date of the coin. Also where you see the 77 at on the coin.
You probably mean 925 silver which is sterling silver. Purity is 925% out of 1000% is pure silver, the rest is copper.
It represents the "fineness", or purity, of the silver in the coin expressed as a decimal. Normally fineness is given to 3 digits. In that case the number expresses the purity as a in parts per 1000. For example, 999 means 999/1000 of the coin is pure silver. The other 1/1000 is some kind of trace impurity that's impossible to remove. Sometimes the fineness is expressed with a decimal point (.999) and sometimes without, but the meaning is always the same - e.g. 999/1000 = 0.999 = 99.9% (see why they made you take algebra in middle school?) 999 fine silver is generally only used for bullion coins and other items that aren't subject to wear, because it's too soft. In the US, pre-1965 silver coins minted for circulation were made of 900 fine silver, i.e. 90%, with the remaining 10% being copper for hardness. Sterling silver is 925 fine often used in jewelry and formal dinnerware.
"ASW" means "Actual Silver Weight", and refers to the weight of the silver (in troy ounces) in the coin. To get the "melt value" of a silver coin (that is, the value of the silver in the coin melted down, without regard to any numistmatic value the coin might have), you would multiply the ASW by the current value of a troy ounce of silver ($19.92 as of March 2, 2008). By the way, the concept of "AGW" and "APW" (for "Actual Gold Weight" and "Actual Platinum Weight", respectively) is exactly the same.
f you mean a US quarter dated 1964 it's not sterling silver, it's coin silver (.900 silver & .100 copper) and value as of today is $3.25 just for the silver
I think you mean 1000 gram ingots, not grains. That would be 100,000 grams of silver, or 3,215.07 troy ounces (oz t) in silver mass. Silver, gold and precious metals are always weighed in Troy ounces, which are different from the ordinary ounce.
it is pure silver
it is the percentage out of 1000 that it is silver. so it is 825/1000 silver. I'm pretty sure. hope this helps.
Anonymous
You need to give the denomination and date of the coin. Also where you see the 77 at on the coin.
the silver content in the coin is equal to or greater than999 fine silver
The 395 means how much pure silver is in the coin. It was stamped on by the manufacturer when the coin was made and it was possible to measure the amount.
You probably mean 925 silver which is sterling silver. Purity is 925% out of 1000% is pure silver, the rest is copper.
Antiko 800 is a German silver mark of 800/1000 silver.
745 out of 1000 parts silver. Uk standard is 925
It's a fancy term meaning silver plated.
I means that is a coin made of 92.5% pure silver.