Over 1.1 billion printed in the late 1950s and the last series before the motto In God We Trust was added to the back design. Readily available in all grades at affordable prices. The OP's note would be typically found in a dealers Bargain Bin offerings.
Common date US silver certificate. In pretty rough shape. Worth maybe $2-$3, although for around $5+ you can get a crisp one. This is the last series before the government added "In God we Trust". Personally I would spend it.