Since the re-discovery of Luigi Pericle (Giovannetti as illustratore in the first part of his life) what was to find in the internet was :

“Pericle Luigi Giovannetti was a Swiss artist and painter. He was born in Basel and spent most of his secluded life in Ascona. He is best-known for his cartoons, picture stories and anthropomorphic birds, that were published in magazines and anthologies. His biggest success was the marmot ‘Max’, who made his first appearance in the satirical British magazine Punch in 1952. Few people were aware of Giovannetti’s painting skills, since he never exhibited or sold his works.”