Amazing 1974 Pittsburgh Steelers team-signed Super Bowl Championship football - the best one we have ever handled as far as condition and provenance. This was the personal possession of Hall of Fame linebacker Jack Lambert, which adds great value. Roughly 40 signatures on white panels of this Official NFL (Rozelle) ball highlight this vintage marvel, not including the modern silver Sharpie autograph with HOF 90 inscription added by Lambert. All the keys are here including: Bradshaw, Lambert, Holmes, Bleier, White, Russell, Harris, Blount, Ham, Greene, and more. Ball is close to NRMT and signatures average 8/10. The '74 Steelers rolled to a 10-3-1 record for Coach Chuck Noll, and the stingy Steel Curtain defense yielded just 33 points in a sweep of three playoff games, including a 16-6 Super Bowl victory over the Minnesota Vikings.