Posted By:
Scott B.I don't believe the Drum pouches were too small to fit tobacco card(s) in it. Take a look at the 10count Piedmont pack that they have on T206 Museum site. The card was barely fit inside the pack too.
http://www.t206museum.com/page/periodical_16.html
I was also on your side thinking Drum backs can only be found in cigarette packs until I found that Drum pouch card that indicated the tobacco was referred to use for pipe or cigarette.
I guess we can't rule out the chance of pulling tobacco card(s) from Drum pouches. Similar to no one can be 100% certain whether Cobb backs were once packaged in Cobb Tin or not.