How much is a poster worth with the autograph of Eric Church?

The value of a poster with Eric Church's autograph can vary depending on several factors, including the size, year, design, rarity, and condition of the poster, as well as the popularity of Eric Church as an artist. Some of the rare Eric Church posters or signed items can be very pricy and may vary from several hundred dollars up to potentially a few thousand dollars, possibly more in certain special cases. It's generally recommended to seek the advice of professionals or avid collectors knowledgeable about music memorabilia values.