1937 Cincinnati Bengals, how accurate is that? where do you get your info?

yours is the only place I get the info from. So where are you getting your from?
Also, is this a red or a deep orange? I assume the helmet is orange and not a light brown?
I'm thinking of painting an electric football team like this at some point

Much of the research from the early years is from going through newspaper archives.
This photo shows the contrast between the oranges.
Cincinnati vs Rochester 10/31/37.

to be honest, I dont see much difference in shade. Helmets still look pretty dark there.

This one should be clearer.
Los Angeles vs Cincinnati 12/12/37

ok,.. but now those appear to have back of the pants stripes

Yep, Bill noticed that too. It's in the cue to get fixed.

Do I not see them in defunct teams anymore?