As you can see with the five seal color choices, five dollar bills come in all different types.  Yellow seal five dollar bills are one year issues for North Africa.  The blue seal five dollar bills signify that the bill is a silver certificate.  Red seal five dollar bills are called legal tender or United States notes.  A green seal on a five dollar bill signifies that it is a Federal Reserve note.  Brown seals can signify a number of things. 

Five dollar bills have always been a heavily printed denomination.  As with any old five dollar bill, condition is very important.  However, with the majority of five dollar bills the serial number is also extremely important.  A five dollar bill gains value if the serial number begins or ends with a star symbol.  Use the seal color listing above or the picture guide below to select your five dollar bill and learn more about what makes some old five dollar bills very rare.