Don Rosa: >>Ah, but yes, he certainly was! He was used in one single 1-page gag cartoon >>in U$ comics in 1961. I didn't recall any Barks story using Ludwig, but your mentioning a one-page gag helped. "Flower are Flowers": U$ 54, Dec '64, inside back cover, p 35 of Gladstone's "U$ One-Pagers in Color" album #2