Astrolabes and clocks thumb|upright=1.4|Amerigo Vespucci observing the Southern Cross by looking over the top of an armillary sphere bizarrely held from the top as if it were an astrolabe; however, an astrolabe cannot be used by looking over its top. The page inexplicably contains the word astrolabium. By Jan Collaert II. Museum Plantin-Moretus, Antwerp, Belgium.
Astrolabes and clocks thumb|upright=14|Amerigo Vespucci observing the Southern Cross by looking over the top of an armillary sphere bizarrely held from the top as if it were an astrolabe; however an astrolabe cannot be used by looking over its top The page inexplicably contains the word astrolabium By Jan Collaert II Museum Plantin-Moretus Antwerp Belgium