I found an old issue of Tuff Stuff from 1991 at a thrift shop and inside had the "postcard insert" intact, which I'll add scans for later. However it came as a panel of 2 cards, so should there be an insert on this checklist for the full panel? I'm not sure if I'll cut the postcards out, but just wondering so I can scan it in case I do.
Edit: Also want to add, according to this full panel, they referred to these as "CoverCards", so should we change the name of the set? I'll work on adding a picture once I scan.
Royal Card Review is my blog if you feel like checking it out, thanks if you do!- royalcardreview.blogspot.com/
In the process of updating my collection so don't trust any of my lists right now.