Roughly $50... I'm not sure its melt value in silver (it's .999 so practically pure) but I've seen auctions going that high if you have the certificate of authenticity and it's in perfect condition.
Correction
The last US silver certificates were $1 bills dated 1957, and in any case silver certificates of any form don't contain silver metal. Any so-called "silver certificates" made after that are privately-manufactured items; without knowing anything else about your item it's not possible to estimate a value.
The US issued both $5 and $10 silver certificates with that date. Please make sure your bill has a blue seal and the words Silver Certificate across the top, then check one of these questions: "What is the value of a 1953 US 5 dollar silver certificate?" "What is the value of a 1953 US 10 dollar silver certificate?"
What is the value of a us blue ink 2 dollar certificate
Your bill is an 1899 $5 silver certificate. Please see the question "What is the value of an 1899 US 5 dollar silver certificate?" for more details.
a mint condition silver certificate is worth $5-$6.
Three different denominations of silver certificates are dated 1896. Please determine what you have, then look for the questions "What is the value of an 1896 US [denomination] dollar silver certificate?" for specific information.
The blue seal indicates your bill is a silver certificate, a form of paper money issued until the early 1960s. Please see the question "What is the value of a 1935 A US 1 dollar silver certificate?" for more information.
Normally it would be necessary to have its denomination but the only bill fitting that description is a $1 silver certificate. Please see the question "What is the value of a 1935 B US 1 dollar silver certificate?" for detailed information.
Normally it would be necessary to have its denomination but the only bill fitting that description is a $1 silver certificate. Please see the question "What is the value of a 1935 C US 1 dollar silver certificate?" for detailed information.
Normally it would be necessary to have its denomination but the only bill fitting that description is a $1 silver certificate. Please see the question "What is the value of a 1935 E US 1 dollar silver certificate?" for detailed information.
Normally it would be necessary to have its denomination but the only bill fitting that description is a $1 silver certificate. Please see the question "What is the value of a 1935 F US 1 dollar silver certificate?" for detailed information.
Normally it would be necessary to have its denomination but the only bill fitting that description is a $1 silver certificate. Please see the question "What is the value of a 1935 H US 1 dollar silver certificate?" for detailed information.
Normally it would be necessary to have its denomination but the only bill fitting that description is a $1 silver certificate. Please see the question "What is the value of a 1935 E US 1 dollar silver certificate?" for detailed information.