From memory, I *think* it comes from #2 of Marvel US's Treasury Editions which reprinted the first six issues of the monthly. This was the first of 3 or 4 recap pages that featured at the start of #2, recapping events in Treasury Edition #1 (i.e. monthly #1-3). That oddly large "Star Wars Pin Up Special" box originally had the recap text in it.
Aha. Many thanks. That makes a lot of sense and does indeed explain the (somewhat 'artistic') positioning of the logo and caption.