I recall the story! It‘s one of those weird time-travel stories where Scrooge and/or the Beagles find other versions of themselves in different times and places. A sort of Fantastic Four #5 without Doctor Doom's time platform.
I can’t see the advantages, besides of course the fact we don’t have a horde of US collectors all after our original art…
Here's a link to the Bottaro page. Do you know if it actually was published? I remember many of these wonderful stories with Witch Hazel, Scrooge, Goofy etc. meeting each other, but not this particular one. I must have read hundreds of great stories by Italian artists like Scarpa, Campi, and even the tie-together stories by Perego (who I understand was quite a character with a highly unusual background?) bring back fond memories when I see them.
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Re. the "Trick or Treat" splash panel mentioned in another post:
The organizers of the upcoming pan-European Carl Barks exhibition have approached me and asked to loan the original art for this page, along with my other Barks comic book pages. I really hope the project, which is very ambitious, pans out so a new generation of European fans will be able to see his comic book art in person. Since the early Barks originals are so rare, part of my motivation behind collecting them has always been to make a sampling of them available to museum exhibitions. Paradoxically, the oil paintings are more accessible and certainly more common than the comic book pages from Barks' peak years. And, to be completely honest, I find the latter more impressive and certainly more historically interesting.
(thumbs u