Throwback uniform - Wikipedia
Philadelphia Eagles make proposal to bring alternate helmets back to NFL – SportsLogos.Net News
Eagles to wear kelly green jerseys twice in 2023 – NBC Sports Philadelphia
2022 new NFL helmet designs Which NFL teams have introduced new alternate helmets so far? Patriots, Falcons, Panthers - AS USA
Ranking NFL's current throwback jerseys: Eagles' perfect 'Kelly Green'; high marks for Patriots, 49ers
Eagles' kelly green throwback uniforms can return thanks to NFL alternate helmet rule change
Summer of Throwbacks
2023 NFL Schedule: Predicting when the Eagles will wear Kelly Green
Eagles to wear kelly green jerseys twice in 2023 – NBC Sports Philadelphia
Why the Eagles, and other certain NFL teams, can't wear their awesome throwback uniforms