Blue seals usually indicate that the note is a Silver Certificate.
Before silver was withdrawn from circulation, silver certificates were backed 1-for-1 with the same worth of silver metal in the Treasury. At that time the government controlled the price of silver and it was possible to exchange a silver certificate for the same value's worth of silver metal.
When silver was deregulated in the 1960s the government stopped that practice to prevent people from "gaming" the system by timing sales and purchases. $5 and $10 silver certificates were discontinued in the 1950s but $1 SC's continued to be printed up till about 1965. These carried the "series date" 1957, though. In 1963 the Treasury started issuing new $1 bills as Federal Reserve Notes with the same design and green seal color we still have today.
It's a number indicating which plate was used to print the bill.
What is the worth of a red seal 2 dollar bill
Please check your bill again. It's a $1 bill; the blue seal indicates it's a silver certificate. There's more information at the Related Question.
If it has a blue seal, $6-8. If it has a green seal, $7-12.
if the seal is blue then yes. it's a silver certificate.
The blue seal indicates your bill is a silver certificate. However the question is missing a critical piece of information: the bill's denomination. Depending on what you have, please see one of the Related Questions.
The blue seal indicates your bill is a silver certificate, but "D" is the highest series letter for that date and denomination. In fact, no US bills of any denomination ever reached an "I" series. Please check your bill again and see the question "What is the value of a 1934 US 10 dollar bill with a blue seal?" for information about values.
how an i no hell bank note
RED-The American seal, WHITE-The American seal, BLUE-The American seal.
Please post a new question with the bill's date.
The blue seal indicates your bill is a silver certificate. Please see the question "What is the value of a 1934 A US 5 dollar silver certificate?" for more information.
Please check your bill again and post a new, separate question. The US didn't print any bills dated 1941. 1935 would be the nearest date for a blue-seal $1 bill.