One Chicago on X: "Have you seen our amazing #ChicagoFire helmet? It could be yours – be here TODAY at 4pm ET for our giveaway! http://t.co/wsN2UmrbjL" / X
![Chicago Fire - Jesse Spencer as Matthew Casey in fire helmet 8 inch by 10 inch PHOTOGRAPH-BG at Amazon's Entertainment Collectibles Store Chicago Fire - Jesse Spencer as Matthew Casey in fire helmet 8 inch by 10 inch PHOTOGRAPH-BG at Amazon's Entertainment Collectibles Store](https://m.media-amazon.com/images/I/516mlfUXIZL._AC_UF1000,1000_QL80_.jpg)
Chicago Fire - Jesse Spencer as Matthew Casey in fire helmet 8 inch by 10 inch PHOTOGRAPH-BG at Amazon's Entertainment Collectibles Store
![Chicago Fire Crews Battle 3-11 Alarm Commercial Fire - Fire Engineering: Firefighter Training and Fire Service News, Rescue Chicago Fire Crews Battle 3-11 Alarm Commercial Fire - Fire Engineering: Firefighter Training and Fire Service News, Rescue](https://www.fireengineering.com/wp-content/uploads/2022/03/20220323olk-chicago-fire-10.jpg)