What is the value of a 1953 US 5 dollar bill?

Retail prices as of 10/2010:

If it has a blue seal and the Words Silver Certificate across the top, it's worth $8-$10 in circulated condition, and $18-$20 uncirculated.

If it has a red seal and the Words United States Note across the top, its value depends on whether there's a small letter next to the date:

No letter: $5-$12 circulated, $30 uncirculated

"A": $5-$9 circulated, $12 uncirculated

"B": $5-$8 circulated, $12 uncirculated

"C": $5-$9 circulated, $30 uncirculated
$5 bills with that date come in two varieties and with several series letters. Most are worth only $5 to $8 in average condition.

However, if your bill has a red seal, says United States Note, and does not have a small letter next to the date, it could be worth up to $12.