Is a 1977 trustee saving bank silver jubilee coin made of silver?

The 1977 Trustee Savings Bank silver jubilee coin is not made of silver; it is typically a commemorative coin made from cupronickel or a similar alloy. While it commemorates the silver jubilee, the coin itself does not contain silver. If you are looking for a specific value or details about the coin's composition, it's best to consult a numismatic expert or reference guide.