You could find these small windows, generally triangular in shape, next to the driver and passenger’s windows. They opened up to allow air in without having to roll down the regular window, which had the tendency to mess up hair and let water in.
I know this is hard to believe, but windows were once controlled by cranks that required physical exertion before the reward of fresh air. Sarcasm aside, this feature is actually still fairly commonplace in base model cars with few added features, but it is seen less and less each year.
Read More: 10 Once Commonplace Items You Can’t Find In Cars Anymore