As in every line of vintage//antique items there are exceptions and that is the exception not the rule. As in every item of that nature it is best to do some research, the only problem with researching online is that most people see what they want to see and not reality. I have been in the “old stuff” business for 30 years.
It’s easier to steal a base because most batters are right handed and they are not required to move out of the way of the catcher.