I'm curious what the type card collectors here use as their year cutoff for collecting an issue and how they decided on that particular year. I can think of at least 4 reasonable candidate years for a "pre-war" date (all covered here
http://www.ushmm.org/wlc/en/article....uleId=10007306)
and two others cutoffs that make a little more sense to me (Burdick related), but I'm sure others have cutoff dates other than these 6 years.