Supposedly when they first ordered the stick-on logos they only bought have as much because they didn’t realize they needed twice the number as the number of helmets. After putting them on they decided to leave it that way. Talking sports trivia at VFW recently they story was told to me.
Why use the old Denver Broncos logo?
The way I heard it was the steelers weren’t sure at first if they wanted the logo at all, so they decided to just try it on one side, and after awhile they just sort of thought they’d leave it that way and it’s been that way ever since.
After I wrote this I looked it up and I’m pretty close I think. Heres more than you’ll probably want to know about it.....cheers:
http://www.steelers.com/history/logo-history.html