In the 1950s and '60s the 2-bar facemask was a standard style worn by position players such as quarterbacks, running backs, receivers and defensive backs.

49ers 1963. This helmet was worn by great 49ers such as: QB John Brodie, CB Jimmie Johnson (HOF 1994), T Bob St. Clair (HOF 1990), DT Leo Nomellini (HOF 1969), FB Joe Perry (HOF 1969)