The Steel Curtain was the nickname given to the front four of the famous defensive line of the Pittsburgh Steelers during their 1970s dynasty years. This defense was the backbone of the Steelers dynasty, which won 4 Super Bowls (IX, X, XIII, and XIV). This is a hand autographed Pittsburgh Steelers Steel Curtain 8x10 Photo. 4 Autographs include: Joe Greene, Dwight White (deceased), Ernie Holmes (deceased), and LC Greenwood (deceased). Certificate of Authenticity from Athlon Sports Collectibles. Custom Black Mat and Premium Mahogany Color Framed as shown.Athlon Sports Collectibles