The vast majority of red-seal $2 bills were issued as United States Notes rather than silver certificates. In fact, the last red-seal $2 certificates were large-size notes printed in the 1896 series.
If you have a standard-size $2 bill with a red seal, it'll almost certainly have the words UNITED STATES NOTE in a banner across the top front. Most aren't worth a significant premium but depending on their date and series letter, some can be worth hundreds of dollars. You can check the Related Link below for prices.
Red Ink
U. S. Notes were distinguished by red seals. They were a form of currency issued directly by the Federal Government instead of through the Federal Reserve System. U. S. Notes were functionally equivalent to Federal Reserve Notes and were discontinued in the late 1960s to save on printing costs.
What is the value of a us blue ink 2 dollar certificate
Please don't assume that every old bill must be a silver certificate. The bill's red ink as well as the banner across the top of its front side indicate that it's a United States Note rather than a silver certificate. (In fact, the last $2 SC's were issued in 1899.) Please see the Related Question for more information.
The oldest dollar bill is a 1935 Silver Certificate.
Please don't assume that every old bill is a silver certificate. 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. There's more information at the question "What is the value of a 1928 F US 5 dollar bill with a red seal?"
Please don't assume that every old bill must be a silver certificate. In fact the last US $2 silver certificates were dated 1899. The red ink and banner across the top of your bill indicate that it's a United States Note, a form of currency issued directly by the federal government rather than through the Federal Reserve System. Please see the question "What is the value of a 1928 US 2 dollar bill?" for more information.
Any red-seal US $2 bill dated 1928 or later is a United States Note and not a certificate. Certificates were exchangeable for silver or gold, and carried the words Silver Certificate or Gold Certificate across the top. Please see the question "What is the value of a (date) US 2 dollar bill?" for more information, where (date) is your bill's series date.
At the least, $2
The red ink and banner across its top front indicate that your bill is a United States Note and not a certificate. Certificates were at issued long ago for redemption in silver (blue seal) and gold (gold seal). Please see the question "What is the value of a 1928 US 2 dollar bill?" for more information.
The term "certificate" is used for silver and gold certificate bills; a red seal indicates you have a different form of currency called a United States Note. Please see the question "What is the value of a 1928 US 5 dollar bill?" for more information.
The red ink and banner across its top front indicate that your bill is a United States Note and not a certificate. Certificates were at issued long ago for redemption in silver (blue seal) and gold (gold seal). Please see the question "What is the value of a 1928 G US 2 dollar bill?" for more information.
What is the value of a us blue ink 2 dollar certificate
Please don't assume that every old bill is a silver certificate! As you can see from the banner across your bill, it's a United States Note rather than a silver certificate. In any case 1963 $2 US Notes are fairly common among collectors. Please see the question "What is the value of a 1963 US 2 dollar bill?" for more information.
The last $2 red-seal silver certificates were printed in 1896. Nearly all red-seal $2 bills printed after that date are United States Notes, as indicated by the banner across the top of the bill's front. Please look for questions in the form "What is the value of a (date) US 2 dollar bill?" for more details.
As indicated by the banner across its top front, your bill is a United States Note and not a certificate. Certificates were exchangeable for silver (blue seals) or gold (gold seals) and carried that name across the top front. Please see the question "What is the value of a 1928 US 2 dollar bill?" for more information.
The red seal as well as the banner across the top of Franklin's portrait indicate your bill a United States Note and not a silver certificate. Please see the question "What is the value of a 1966 US 100 dollar bill?" for more information.
There were no series letters on 1899 $2 silver certificates. Please see the question "What is the value of an 1899 US 2 dollar silver certificate" for values and other information.
Actually, in would be VERY surprising if a red-seal $2 bill had the words "silver certificate" on it. The last red-seal $2 silver certificate was printed in the 1896 series. By the early 20th century most seal colors had been standardized with red used on United States Notes and blue used on silver certificates. I'm sure if you look at your bill again it'll have the words "UNITED STATES NOTE" in a banner across the top of the bill's front. For a more specific answer about its value, please search for questions like "What is the value of a (date) US 2 dollar bill?", where (date) is the date on your bill.