• diameter: 5 cm,
  
  
• made of solid brass


• nocturnlabe keychain is fully functional but due to the miniature size, precise observations and measurements are rather impossible to calculate
  
  
• information booklet included
  


• packed in elegant box
  

This piece is a reproduction of an instrument dated to 1570 and signed by Humphrey Cole. The original instrument is located at the British Museum, London and has two faces, one of which is this nocturnal.
This nocturnal watch is an artifact used to obtain the time at night using the fixed stars in the sky. This instrument appeared at the beginning of the 16th century and began to disappear in the 18th century. This piece was made to calculate the time with the Pole Star and Kochab.

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