What is the value of a US 5 dollar series B silver certificate with a blue seal and the signatures of Smith and Dillon?

As of 01/2011, a circulated 1953 B $5 silver certificate with a blue seal is worth $8 to $12 at retail. A nice crisp uncirculated one might bring $18 to $20.

If it has a red seal it's not a silver certificate, it's a U.S. note. Circulated, face value to $8. Crisp and unfolded, maybe $10 to $12 at retail