Glossy 20 x 16 photo of Joe Greene, Ernie Holmes, Dwight White, and L. C. Greenwood sitting on the sideline, signed in gold ink by all four members of the famed ‘Steel Curtain’ defense. Accompanied by a certificate of authenticity from Tri-Star. In very fine condition, with a Tri-Star authentication label affixed to lower right corner. Auction LOA Steve Grad/PSA/DNA and R&R COA.
