quack quack

Pingu Has Music Lessons, illustrated by Antonio Lupatelli (also known under the pseudonym of Tony Wolf).

Since the original episodes were created in Switzerland, its very nice seeing Pingu interacting with the people and culture of his show's country of origin. They even included the border guards of each neighbouring country of Switzerland.

(Source: Mandarake Auction)

These images were posted by a Japanese twitter account that had a lot of anime production art, but I can't seem to find it anymore.

Moth and the Flame - 1938, USA - dir. Burt Gillett, David Hand

(this one was a hard and uncomfortable watch)

Przygody Błękitnego Rycerzyka (Adventures of the Blue Knight) - 1984, Poland - dir. Lechosław Marszałek

Ants in Your Pantry - 1945, USA - dir. Mannie Davis

Муха-Цокотуха (Tsocotukha the Fly) - 1976, USSR - dir. Boris Stepantsev

The Way of All Pests - 1941, USA - dir. Arthur Davis

Ferda mravenec (Ferdy the Ant) - 1944, Czechoslovakia - dir. Ladislav Zástěra, Hermína Týrlová

(this one has some unfortunate character designs for the grasshoppers)

Дело №... (Case No. …) - 1964, USSR - dir. Faina Epifanova

漫画 二つの世界 (Two Worlds) - 1929, Japan - dir. Yasuji Murata

This is an officially licensed Pingu t-shirt. That's all there is to say.