That has never been true. Only gold certificates were backed by gold, and they were discontinued in 1933. Silver certificates were backed in silver until 1968. Since then all money has been so-called "Fiat" money where its value is maintained only by the credit and stability of the U.S. government, and citizens' willingness to accept the bills as worth specific amounts in purchasing power.
Silver certificates were backed by specific dollar amounts of silver. That is, a $1 silver certificate was backed by $1 worth of silver in the Treasury, a $5 certificate was backed by $5 worth of silver, etc. The government maintained a fixed price for silver bullion so the bills were indirectly backed by a specific weight. However the fixed price wasn't $1/troy ounce but $1.29, so the weight was roughly 0.77 troy ounces, or about 24 gm.
There are approximately 28 US Dollar notes in 1 Ounce.
Currently the Mint has no plans for a $5 coin in general circulation. But from 1986 to 2011 one tenth ounce bullion coins with a $5 denomination were produced.
Silver Eagles are one ounce bullion coins that were first made in 1986, a one dollar coin dated 1972 is a Eisenhower dollar (1971-1978) and none of them made for circulation have any silver or any collectible value.
These coins are not intended for circulation. They're sold for their precious metal value and the dollar denomination is purely artificial. The current price of silver is about $14/oz.
it is the market-cost of gold and, as far as i know, it means the cost of gold when it makes up 99.5% of a troy ounce. gold generally occurs, after refinement, at a purity of 99.5% within every (troy) ounce of "gold", i.e. 0.5% of the troy ounce constitutes impurities.
$12.00
Well due to the fact we had silver dollars that were an ounce of silver, 1 dollar.
80% or 0.36169 ounce's.
A Morgan 1882 Silver Dollar has 0.7735 of an ounce of silver.
1/20 of one ounce)
1,000,000 dollar for a ounce