The punishing Pittsburgh Steelers defensive line is commemorated by this unique jersey featuring the numbers and perfect black felt tip signatures grade 9-10. of Joe Greene, Ernie Holmes, Dwight White, and L.C. Greenwood. “Steel Curtain” spans the shoulders of this shirt, with all sewn-on identifiers. This is a very hard jersey to complete only one living member Joe Green and his # is retired Authentication: JSA Basic Cert & Sticker