Which IS creepy, I'll admit.
Blue-Jay Corn Remover, by Bauer & Black, 1927. Artwork by Walter W. Seaton.
There are many other Blue-Jay ads out there, some quite funny. But this "Gray Specter of Infection" is a powerful image they used at least three other times. See them
full size 1000x1262 (from periodpaper.com)
They moved to bruises, not corns, as the source of doom, and the artwork stayed sinister. Sadly I have not located any of these in large sizes or better quality.