It depends on condition, but probably at least $200.
I have a listing for a 1915 blue seal National Currency Note but not specifically a silver certificate. If your bill is a National Currency Note its retail value could range from $150 in worn condition up to $325 in better shape.
There's nothing called a "currency dollar". In 1862 the US printed paper $1 notes and struck $1 coins in both silver and gold.
A silver certificate is paper currency. It is not a coin. No silver dollars were minted in 1943, and no silver certificates were printed with that date either.
There were no $50 silver certificates issued in 1918. However, there were National Currency Notes issued that have a somewhat similar blue seal. If you do have one of these you will need to have it checked by a currency expert to make sure it is not a counterfeit or reproduction because a genuine bill can be worth in excess of $7000 depending on its condition.
The U.S. dollar was introduced as the official currency of the United States with the Coinage Act of 1792. This legislation established the U.S. Mint and defined the dollar in terms of a specific amount of silver. The first coins were minted in 1792, and the dollar has since evolved into a key global currency.
His currency was the half dollar or know as the silver dollar.
Silver Dollar City, Silverton, Silver Springs, and Silver City
I have a listing for a 1915 blue seal National Currency Note but not specifically a silver certificate. If your bill is a National Currency Note its retail value could range from $150 in worn condition up to $325 in better shape.
silver dollar, issued in 1998
silver notes
Regardless of denomination, silver certificates were a form of currency backed dollar-for-dollar with silver bullion on deposit in the US Treasury. Please see the Related Question for a more detailed explanation.
The dollar
Yes, but a long time ago. $20 silver certificates were made from 1878 to 1891. After that they were discontinued in favor of other types of bills, including National Currency and the familiar Federal Reserve Notes.
There's nothing called a "currency dollar". In 1862 the US printed paper $1 notes and struck $1 coins in both silver and gold.
Take it to a US currency collector.
The Bland-Allison Act of 1878 re-established the silver dollar as a form of currency and committed the U.S. government to the purchase of a certain amount of silver each month for coinage.
The national meteorological service in the US is the NOAA (National Oceanic and Atmospheric Administration) in Silver Springs, Maryland.