Round & Round, the perpetual calendar of David Weatherhead

The British designer David Weatherhead has designed a perpetual calendar consists of three plastic discs, each of which marks the number on the day of the week and month through a circular hole, which moved with a finger, as on the circular pad of an old phone.

It is called Round & Round and is produced by a selective version of all white or all black, with three discs in different colors, or Zirkus version of chess and spirals. Ideal for routine every morning, even with the cup of steaming coffee in hand, like to control what day it is.

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