This instrument is one of the most widespread dials in the world, belonging to the class of altitude dials. It’s known as the cylindrical dial, the vertical dial, the travelling dial or more commonly, the Shepherd’s dial.
The dial is finished with a rotating top with two styles or gnomons (the long one for winter and the short one for summer), both independent, collapsible so they can be stored inside the hollow cylinder to be transported.
Height: 255 mm
Diameter: 65 mm