After US currency was reduced to its present smaller size in 1928, 5 different colors were used to denote various types of money. The blue seal indicates that these bills were backed by silver, and were fully redeemable in coin. Since 1968 this has no longer been true, and most silver certificates, particularly the later dollar ones (most of the 1935 and all of the 1957 series) are worth little above face value unless in near-perfect condition.
Incidentally, the other colors used were the familiar green for Federal Reserve notes, brown for the first (1928) Federal Reserve and National Currency bills, as well as some World War II notes, yellow for Gold Certificates and some World War II bills, and red for National notes. Each are an interesting study in their own right.
if the seal is blue then yes. it's a silver certificate.
What is the value of a us blue ink 2 dollar certificate
There weren't any federally-issued $20 silver certificates dated 1909 but at that time many private banks printed their own bills under federal charter. Please post a new, separate question with more information. If your bill has the name of a private bank on it, include that name. Also note the seal color - at that time they weren't standardized so a blue seal didn't indicate that a bill was a silver certificate.
There aren't any Federal Reserve indicators or seal on silver certificates. Silver certificates were issued directly by the government and not through the Federal Reserve system.
Bills printed from 1928 till 1957 (the last series year) will have the words Silver Certificate printed across the top of the bill's front. In most but not all cases, the seal and serial numbers will be printed in blue ink. Some special WWII bills may have brown or yellow seals. Older (pre-1928) bills may be more difficult to identify. Some will say Silver Certificate, but others may use words such as "5 silver dollars" or "one dollar in silver coins", etc.
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.
if the seal is blue then yes. it's a silver certificate.
The blue seal indicates your bill is a silver certificate. Please see the question "What is the value of a 1934 B US 5 dollar silver certificate?" for more information.
The blue seal is on the right where the green is usually. There is no seal on the left. The words Washington DC are over the blue seal instead of the word ONE. The # is over the seal and also on the left side.
More information is needed because blue-seal silver certificates were issued for many decades and in different denominations. Please check your bill's date and denomination, then look for questions in the form ""What is the value of a [date] US [denomination] dollar silver certificate?"; e.g. "What is the value of a 1953 US 10 dollar silver certificate?"
The blue seal indicates your bill is a silver certificate, a form of paper money issued until the early 1960s. Please see the question "What is the value of a 1935 A US 1 dollar silver certificate?" for more information.
The blue seal indicates your bill is a silver certificate, a form of paper money that was discontinued in the early 1960s. Please see the question "What is the value of a 1934 US 5 dollar silver certificate?" for more information.
The blue seal indicates your bill is a silver certificate, a form of paper money issued until the early 1960s. There's more information at the question "What is the value of a 1923 US 1 dollar silver certificate?".
what ever someone is willing to pay
All silver certificates printed from 1928 to 1957 had blue seals. Please see the question "What is the value of a 1957 A US 1 dollar silver certificate?" for more information.
The blue seal indicates it's a silver certificate. Please see the Related Question for more information.
The blue seal indicates your bill is a silver certificate, a form of paper money issued until the early 1960s. Please see the question "What is the value of a 1935 A US 1 dollar silver certificate?" for more information.