Gideon Dagan's perpetual calendar was created in 1998 for the Museum of Modern Art in New York (MoMA). The calendar is absolutely timeless and can be used year after year. With its unusual design and playful appearance playing with gravity, the round and straight design is striking. The current month is indicated by a freely adjustable ball in the middle of the large circle. The precise date can be adjusted horizontally by means of a specific additional ball. The ball stays in place thanks to the built-in magnet. The perpetual calendar is made of plastic and magnets. In very good overall condition. Measurements: - Height: 24 cm - Depth: 4.2 cm - Length: 33 cm