Large Perpetual Calendar (black/silver)
From the Museum of Modern Art (MoMA) product collection. Gideon Dagan, 1998. The original Perpetual Calendar was designed for MoMA in 1998; the smaller version was introduced in 2008. To use, simply insert the stand to place the calendar on a desk and move the magnetic balls manually to mark the date and month. Made of injection-molded plastic and magnets.