Particularly in regards to US 2nd Corp, both 1st Division and 2nd Division HQ flags...
All the ones Ive personally been able to examine were all Brigade HQ flags, that most all of those had applied peek-through types. Wasnt sure if Division HQ used the same habits or not. Plenty of data describing the size and colors used, but didnt find any detail reference if on both sides or not.
Thanks in advance
Frederick