That is really nice! What is it from?
This is an illustration Scarpa did specifically for endpapers of the italian edition of his collected works (a limited print run hardcover series which represented all his stories with critical commentary in black & white). The series had ugly covers (their graphic design, I mean, the illustrations were original Scarpa pieces).
The books can be seen from this web search: https://www.google.it/search?client=firefox-a&rls=org.mozilla:it-IT:official&channel=s&hl=it&q=le+grandi+storie+di+romano+scarpa&um=1&ie=UTF-8&tbm=isch&source=og&sa=N&tab=wi&ei=WQ0yUd_0JoKetAaa1oHYDg&biw=1465&bih=735&sei=XQ0yUbiKK8XhtQbJtIGoCA
This one is my favorite cover:
done for the (enclosed) 1961 story "Mickey Mouse emperor of Calidornia", one of the finest Scarpa stories ever, and probably his most "american" as he deals with an ancestor of Mickey Mouse from which he apparently inherited the US state of "Calidornia" (the Disney version of California, where Mousetown and Duckburg are – and also Junkville, this was a Scarpa intuition). This is the INDUCKS page for the story:
http://coa.inducks.org/story.php?c=I+TL++274-AP (unfortunately still unpublished in the USA).
That "Trick or Treat" is nice for sure. If I find one cheap I’d love to have it. Of course I have somewhere the story in italian, but to me it’s an important key as it’s not only Barks, but the first Hazel witch, and also deals with Halloween that in the last years we have witnessed as a sort of "forced import festivity" here…
Thanks again for posting this. It's great to see how healthy the Disney market is in other countries. I wish it was that vibrant here.