72 Dolphins' status as only perfect team may end in Valley, Sports
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Don Shula, longtime Miami Dolphins coach and two-time Super Bowl winner, dies at 90
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1973 Undefeated Dolphins beat Redskins in Super Bowl VII – Bowie News
Super Bowl VII: Miami Dolphins vs Washington Redskins Dolphins Complete Perfect Season, Super Bowl VII: Miami Dolphins vs Washington Redskins Dolphins Complete Perfect Season, By Miami Dolphins Zone
Football Season in Time Article - Golden Football Magazine
14 JAN 1973: Vern Den Herder (83) of the Miami Dolphins along the sidelines of Super Bowl VII as the Dolphins played against the Washington Redskins at the Los Angeles Memorial Coliseum
The Perfect Team: Part 25-Fifty Years Later - Miami Dolphins