Dallas Cowboys
"Dandy" Don Meredith wearing the first Cowboy helmet. Dallas wore this helmet from 1960 - 1963.
1960-1963 version
1964-1966 "white outline" version
Roger Staubach wearing the 1976 special "red, white & blue stripes" version
1990 SI. Notice the vertical name plate on the white stripe  
Mr. Smith in 1994