Authentic prints are usually hand-signed by the artist.
Best known for his realist style, Andrew Wyeth was one of the most well-known American painters of the last century. If you come across a Wyeth print at a gallery sale, you will want to authenticate it first so you're not taking home a forgery. Moreover, insurance companies will not cover your print unless you can verify its authenticity. There are a number of examples of his works, as well as his signature, which are available online.
Instructions
1. Contact the dealer from the gallery that is selling the print, and ask to see the print's certificate of authenticity. The dealer should also be able to answer any other questions about the print's authenticity and where it came from.
2. Examine the print itself and look for the number designating where the piece stands in the series of prints Wyeth released. This is an especially important step in identifying a print that is not being sold at a gallery.
3. Compare the signature from the print to Wyeth's signature from one of his authentic prints, which you can likely find on his website or in various online art databases. You also can try to go back and compare this print to some of his earlier works to see if you can draw any parallels. You might also want to have an art appraiser examine the print and authenticate it.