Indicia number is Vol. 9, No. 1.
The on-sale date is the publication date reported in the U. S. Copyright Office filing.
Art submitted on April 29, 1948. Synopsis by Michael Barrier from "Carl Barks and the Art of the Comic Book" (M. Lilien, 1982).
Art on this sequence previously credited to Carl Buettner. INDUCKS has it wrong here. They got most credits from me, but not this one. Artist is Don Gunn, as per my Disney Index - Dell Comics Part Two. And I'm 100% sure about that - - Alberto Becattini.