As of 05/2012 approximate prices are:
No letter next to the date:
Circulated: $5 to $12 depending on the bill's condition
Uncirculated: $30
"A"
Circulated: $5 to $9
Uncirculated: $12
"B"
Circulated: $5 to $8
Uncirculated: $12
"C"
Circulated: $5 to $9
Uncirculated: $30
Serial Numbers
A bill's serial number is a counter and a security feature. In most cases it doesn't affect a bill's value or help to identify it. Some collectors specialize in bills with low serial numbers (e.g. 00000005) or unusual patterns (12344321) so these can bring above-average prices.
Red Ink:
Red ink is standard on United States Notes, a form of currency issued up to the late 1960s. They're essentially the same as current Federal Reserve Notes but were issued directly by the federal government instead of by the central bank.
DISCLAIMER: The values quoted are market averages as of the date shown, but may be different for an individual bill due to variations in quality and other factors. Also the wholesale (buying) price of a bill will be less than the selling (retail) price. A reputable currency dealer will be able to give a more accurate valuation based on an in-person inspection.
All Series 1953 US $2 bills were printed as red-seal US Notes. Please see the question "What is the value of a 1953 US 2 dollar bill?" for more information.
Please see the question "What is the value of a 1953 C US 2 dollar bill?" for more information. The red seal indicates that it's a United States Note, a form of currency issued until the late 1960s. All 1953 US $2 bills were printed as US Notes.
That is a US Note, and fairly common. In good condition, they are worth about $2.50.
Please check your bill again. All 1953 series $10 bills were printed as blue-seal Silver Certificates.
No US $10.00 gold coins are dated 1953.
All Series 1953 US $2 bills were printed as red-seal US Notes. Please see the question "What is the value of a 1953 US 2 dollar bill?" for more information.
Please see the question "What is the value of a 1953 C US 2 dollar bill?" for more information. The red seal indicates that it's a United States Note, a form of currency issued until the late 1960s. All 1953 US $2 bills were printed as US Notes.
That is a US Note, and fairly common. In good condition, they are worth about $2.50.
Please check your bill again. All 1953 series $10 bills were printed as blue-seal Silver Certificates.
No US $10.00 gold coins are dated 1953.
C is the highest series letter on a 1953 US $2 bill. The series letter, if any, is next to the date. Please see the question "What is the value of a 1953 US 2 dollar bill" for more information.
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?"
Please check your bill again. The banner across its top and the red seal indicate it's a United States Note, a form of paper money issued directly by the Federal government. US Notes were discontinued in the 1960s. $2 Federal Reserve Notes were first printed in 1976. There's more information at the question "What is the value of a 1953 C US 2 dollar bill?"
The US did not print any 10 dollar bills with this date. The closest years to 1952 were 1950 and 1953.
Please check your bill again. Red seal $5 bills were issued in 1953 and 1963. No US bills were dated 1962. There's more information at the questions"What is the value of a 1953 US 5 dollar bill with a red seal?""What is the value of a 1963 US 5 dollar bill with a red seal?"Red InkRed ink indicates that a bill is a United States Note, a now-obsolete form of paper money that was similar to current Federal Reserve Notes.
The US didn't print any $50 bills dated 1953. Please check your bill and post a new question.
Please don't assume that because a bill is old it has to be a silver certificate. As the red seal and banner across your bill's front indicate, it's a United States Note. You didn't provide a denomination, but only $2 and $5 bills were printed with that seal color and date. Please see one of these two questions for more information: "What is the value of a 1953 B US 2 dollar bill?" "What is the value of a 1953 B US 5 dollar bill with a red seal?"