A designer plays a role in deltiology. He is the designer of certain postcards. It can also be associated with series, posters and signatures (time object)
A person can play the role of designer when the "designer" indicator of his file is activated. This will allow you to see this person in the list of illustrators or to be able to select him as an illustrator of a postcard.
A person in deltiology can have different roles. He can for example be editor and illustrator at the same time at the level of his record.