Posted By:
Scott B.Ted,
"one proof of this being so, are the numerous backs we've seen with "wet ink" front impressions on them."
There are "wet ink" back impressions on t206 front as well. Like those cards on this page http://www.t206museum.com/page/ra_ghost_front.html
I don't think we can draw any conclusions out of the Pied cigar pack uncut sheet.