Like a German Shepherd, Kaweco pens are "Zuverlassig und Treu" (Dependable and Loyal)!
Your writing instrument couldn't be guarded better:
The German Shepherd is Kaweco's heraldic animal since the 1950's, because he's always been a symbol for reliability and loyalty. Therefore, Kaweco created a pen holder, which is based on the original one from the fifties.
As an added benefit, it is now equipped with a coin slot and can be used as a piggy bank, too.