Moved NOBs higher on back.
Changed 1971-79 blue jersey NOBs to 'pro-block' font - no serifs.
Blue jerseys became lighter in 1972 (not 1978) with switch to shorter sleeved mesh jerseys.
White 1970 Super Bowl jerseys had numbers that were lighter blue.
1972-73 white jerseys had lighter blue numbers.
1973 sock stripes made slightly thicker.
Made 1970-77 helmet logo darker.
|January 1971 - BALT v DAL - Super Bowl V|
|9/24/72 - NYJ @ BALT|
|10/14/73 - BALT @ BUF|