Modern ones are only worth face value, but $5 Federal Reserve Notes have been issued for nearly a century. If your bill is older than the 1970s please post a new, separate question with its date and what letter, if any, is next to the date.
The green seal indicates that it's a Federal Reserve Note. Please see the question "What is the value of a 1928 US 5 dollar Federal Reserve Note?" for more information.
The green seal indicates your bill is a Federal Reserve Note. Please see the question "What is the value of a 1934 US 5 dollar Federal Reserve Note?" for more information.
The green seal indicates your bill is a Federal Reserve Note. Please see the question "What is the value of a 1934 US 5 dollar Federal Reserve Note?" for more information.
The green seal indicates that your bill is a Federal Reserve Note. Please see "What is the value of a 1928 D US 5 dollar Federal Reserve note?" for more information.
There were no series letters on any 1929-dated US bills. A large "G" indicates that the bill was distributed through the Chicago Federal Reserve District. There's more information at the question "What is the value of a 1929 US 5 dollar Federal Reserve Note?"
The US Mint only makes coins. Your bill was printed in Washington; Philadelphia is the location of the Federal Reserve bank that requested and distributed the bill. Please see the question "What is the value of a 1914 US 5 dollar Federal Reserve Note?" for more information.
It will read "Federal Reserve Note" at the very top of the bill.
The "4-D" indicates you have an early Federal Reserve Note; those are the code number and letter for the Cleveland OH district. There's more information at the question "What is the value of a 1914 US 5 dollar Federal Reserve Note?".
That phrase appeared on all Federal Reserve Notes of the time because the US still issued gold-backed currency, even though FRNs were not gold certificates. Please see the question "What is the value of a 1928 US 5 dollar Federal Reserve Note?" for more information.
Please check your bill again and post a new, separate question. The Federal Reserve System wasn't established until 1913 and the first Federal Reserve Notes are dated 1914.
As the banner across the top front of your bill indicates, it's a United States Note rather than a Federal Reserve Note. Please see the Related Question for more information.
$5 Federal Reserve Notes have been issued for over a century. Please check your bill again and post a new, separate question with its date and what letter if any is next to the date.