Yes; it let everybody know who was being sponsored by Baines in the days when even having the frame makers name on your bike made you ineligible for amateur competition. Same with Hetchins curly stays and Bates cantiflex tubes and diadrant forks.
It served a purpose. We can think whatever we want about the design, it wasn't made to look good but to differentiate them
Did you read this?
It served a purpose. We can think whatever we want about the design, it wasn't made to look good but to differentiate them