Silver certificates were printed for over 100 years in 7 different denominations, so more details are needed. Please post a new question with:
> The bill's date.
> Whether there is a small letter next to the date.
> The bill's seal color. (Blue is most common, but some used red.)
You don't have to copy the serial number or other numeric markings.
The last US silver certificates were $1 bills dated 1957. Please check your bills again and post a new question.
Please check again and post a new question. There were no US bills dated 1930.
The U.S. didn't print any $1 bills dated 1959. The closest date is a 1957-B silver certificate and it has a value of about $1.50 in circulated condition.
The U.S. didn't print any bills dated 1956.
Bills from the 1899 series are the only US $2 silver certificates to carry a picture of George Washington. Please see the question "What is the value of an 1899 US 2 dollar silver certificate?" for more information.
The U.S. didn't print any silver certificate bills dated 1930. Please check again and post a new question.
To clarify things, the US Mint only makes coins. Bills are printed by the Bureau of Engraving and Printing.Please see the question "What is the value of a 1928 US 1 dollar silver certificate" for more information.
Please check again and post a new question. There were no US bills dated 1958 and the last silver certificates were $1 bills printed in the 1957 series.
Please post a new question. There were no US bills of any denomination dated 1938.
Please check your bill again and post a new, separate question. There are no US bills dated 1941.
Please check your bill again and post a new, separate question. There were no US bills dated 1959 and the last silver certificates were 1957-series $1 bills.
The rather garish reverse-side design on 1934 $1 bills and their immediate predecessors led to them being nicknamed "funny back" bills. Please see the question "What is the value of a 1934 US 1 dollar silver certificate?" for more information.