Originally submitted by Barks as a ten-page story, the equivalent of one full page has been edited out of Barks' submission for the original printed version and all subsequent reprints. Every printing of this story has been nine pages.
Part 2 of 3.
The Rover Rogue Boys, who only appeared in this one story, would seem to be a "substitute for The Beagle Boys", as discussed in the text article "The Winds (and Fog) of Change" by Joe Torcivia, appearing in Disney Masters (Fantagraphics, 2018 Series) #21 - Walt Disney Mickey Mouse: The Monster of Sawtooth Mountain (October 2022). https://www.comics.org/issue/2443125/#3600025
Like The Beagle Boys, The Rover Rogue Boys are a trio of burglar-masked, dog-face crooks, only of different and individualized physical dimensions.
In Episode I, Paul Murry draws Gyro Gearloose with hair (or a hairpiece) atop his head - and down the back and sides of his head. In Episodes II and III, the inventor is drawn more conventionally with just a "birds-nest" of hair or toupee between his dome and his hat.