It refers to the purity of silver. In the United States, when some coins were still made of silver, they were 90% silver with 10% copper.
90 % silver 10% copper or other metal
If that is a private mint coin, it is probably the weight of the coin.
Anonymous
the silver content in the coin is equal to or greater than999 fine silver
You need to give the denomination and date of the coin. Also where you see the 77 at on the coin.
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.
It's a fancy term meaning silver plated.
I means that is a coin made of 92.5% pure silver.
This is the designers initial.
Denarius, which is the Latin word meaning "coin, money, or a Roman silver coin".
Though name meaning depend mostly on the characters used to spell them. From what I gather, Ginza means "Silver Coin" or "Silver Coin Mint"
The US issued no silver coins of any type in 1979, but if you mean a 1979 SBA dollar coin, just spend it.
If you mean a American Silver Eagle bullion coin dated 2005? Yes, there is.