Seattle Seahawks Spirit of 1976 Page
Pro Football Journal: Denver Broncos Helmet Oddity in 1976 and
Pro Football Journal: Another Uniform Oddity. The 1977 Pro Bowl
Dallas Cowboys to wear 1976 Bicentennial helmets on Sunday against
Lot Detail - 1970s-80s Craig Morton Denver Broncos Game-Used Helmet
Photo Uniform Histories of the Broncos, Seahawks – SportsLogos.Net
NFL History: 100 objects that tell the story of football - Sports
The Gridiron Uniform Database: 1962 Broncos Helmet Resolved (Probably)
Riddell Denver Broncos 1975-1996 Authentic Throwback Helmet
Pro Football Journal: Another Uniform Oddity. The 1977 Pro Bowl
Page 6331 – Waiting For Next Year
A plea for the old-school Denver D Broncos uniform - Mile High Report
A plea for the old-school Denver D Broncos uniform - Mile High Report