Please check the date again. The U.S. did not print a 1930 series of $10 silver certificates.
If the date is 1933 however, you'll need to have it authenticated by a currency expert because that is considered to be an extremely rare issue.
The U.S. didn't print any silver certificate bills dated 1930. Please check again and post a new question.
No US silver peace dollars were struck in 1929 or 1930.
Please check your bill again and post a new, separate question. The last $100 silver certificates were printed back in 1891 and no US bills of any kind are dated 1930.
Please check the date again and post a new, separate question. The US didn't print any bills of any denomination dated 1930.
10-20 years for counterfeiting. No US silver dollars were minted 1929-1933.
The U.S. didn't print any silver certificate bills dated 1930. Please check again and post a new question.
No US silver peace dollars were struck in 1929 or 1930.
Please check again and post a new, separate question. The US didn't print any $1 bills dated 1930.
Please check your bill again and post a new, separate question. The last $100 silver certificates were printed back in 1891 and no US bills of any kind are dated 1930.
Sorry, no US halves are dated 1930, none were made.
Please check the date again and post a new, separate question. The US didn't print any bills of any denomination dated 1930.
Please check again and post a new question. There were no US bills dated 1930.
Please check the date and bill type again and post a new, separate question. The US didn't print any bills of any denomination dated 1930, and the last $20 silver certificates were dated 1891.
10-20 years for counterfeiting. No US silver dollars were minted 1929-1933.
Please check the date again and post a new, separate question. The US didn't print any bills of any denomination dated 1930, and the only $1 bill series dates that have a D subseries were 1935 and 1969.
Please check your coin again. The Walking Liberty design was used on HALF dollars during the 1930s, but there were no half dollars or silver dollars minted in 1930 due to the Great Depression.
In order to give an accurate estimate, the coin should be seen. I suggest you take it to a coin dealer and have it appraised.