This Italian comic book “La Legge Del West” was published in July 1959. We also found the story printed in strip form, with two panels per page, published in 1962 in Collana della Prateria #6—Pericolo!. There was a second “La Legge Del West” comic book with the same cover artwork, only this time including the signature of John Severin, published in the early 1970s, but it did not contain “Partita…” The main character is called the Silver Kid.
This was original story belonged to Goodman/Lee in the U.S. as “Showdown at Snake River” published by Horowitz Publications. The illustrator was George Klein. The comic was also published in Australia with a similar cover. The mystery is that the comic book was never released in the U.S. so was it published for the foreign market?
The same story was printed in strip form, with two panels per page, published in 1962 in Collana della Prateria #6—Pericolo!.