I have a Liberty peace head dollar that says 999 fine silver one troy ounce but it has no date on it any thoughts?

It's a modern bullion piece that uses the same design as the old Peace dollars (1921-1935).

It's sold for its silver value, not for spending. Its value will be about the same as the current price of 1 oz of silver metal; use a search engine to look up SPOT PRICE SILVER for up-to-date quotes.