It has a cool story behind it. Jim Trimble, Eagles coach during that time, thought of the Rams horn logo on the helmet to be very cool when Philadelphia faced them. And this was how Philly’s ...

Chiefs or @Eagles Fun fact, from 1963-1973 the arrowhead logo was significantly larger during this period than on the current helmet ... TIL the original Philadelphia Eagles logo is modeled ...

The Eagles' black helmets are new-ish to the franchise. When the NFL loosened the rules on uniforms in 2022, it opened the door for another helmet to be added to Philadelphia's collection.