Alternate helmets approved by NFL for use with throwback uniforms
San Francisco 49ers vs. Tampa Bay Buccaneers - Opponent Report on
49ers considering alternate throwback helmet for 2022 season : r/49ers
49ers considering alternate throwback helmet for 2022 season : r/49ers
NFL on X: Which alternate or throwback helmet are you most
San Francisco 49ers, American Football Wiki
NFL to allow teams to use alternate-color helmets starting in '22
NFL to allow teams to use alternate-color helmets starting in '22
San Francisco 49ers Facts for Kids
Everett Daily Herald, October 19, 2014 by Sound Publishing - Issuu
San Francisco 49ers Facts for Kids
KNBR – Page 1009 – The Sports Leader