What is a 1979 penny with Kentucky stamped on it worth?

A 1979 penny with "Kentucky" stamped on it is likely a novelty item or a form of art rather than an officially minted coin. Its value would primarily depend on its condition and any collector interest, but it is not considered a rare or valuable coin in the numismatic market. Generally, such altered coins may be worth only a few dollars at most. For an exact valuation, it’s best to consult a coin collector or appraiser.