Nocturnal, Italy, 17th century. A nocturnal is an instrument used to determine the local time based on the relative … | Antique clocks, History of science, Antiques
BBC - A History of the World - Object : Nocturnal or Nightdial
Nocturnal | Canada Science and Technology Museum
Nocturnal. Medieval instrument
Navigation: The Nocturnal
Nocturnal. Medieval instrument
Nocturlabe 15 ∅ - Hemisferium
Nocturnal, instrument used to determine the local time. Isolated. Naval Museum of Madrid Stock Photo - Alamy