Briefkaart aan Philip Zilcken before 1893

"Briefkaart aan Philip Zilcken" is a work by Belgian artist Albert Baertsoen, dated before 1893. The artwork is a postal envelope addressed to Philip Zilcken and features a series of Belgian stamps with postmarks. This piece is an example of the genre known as "mail art," a form of visual art that uses mail as a medium. This artwork is currently on display at the Rijksmuseum. It is important to note that this artwork is not a painting or sculpture, but rather a historical artifact. It is an intriguing example of how everyday objects can be considered art.