PSA Set Registry Showcase: 1977 Dallas Cowboys Super Bowl XII Champions Defense
1977 Dallas Cowboys Super Bowl XII Ring - Super Bowl XII Champions Ring
1977 Dallas Cowboys Super Bowl XII World Championship Ring, Replica Dallas Cowboys Ring
1977 Dallas Cowboys Super Bowl Ring Roger Staubach Silver – Championship Rings Store
Super Bowl Champions: 1977 Cowboys - Sports Illustrated
1977 Dallas Cowboys Super Bowl Ring Roger Staubach Gold – Championship Rings Store
Harvey Martin's 1977 Super Bowl ring sells for $71,000, but son claims it was stolen
Super Bowl XII (1978): Dallas Cowboys 27, Denver Broncos 10
1977 Dallas Cowboys Super Bowl Ring Roger Staubach Silver – Championship Rings Store
Top Ten Single Season Defenses in NFL History : #7 1977 Dallas Cowboys