Very beautiful sundial ring pendant - brass

The item is delivered on a velvet ribbon with a gift box and multilingual instruction manual (French, Italian, Spanish, English).
Height sundial. It is so called because the constructive parameter is based on the altitude of the Sun. 
This ring is available in the version for 50° width and can therefore be used in Germany. In the 15th In the 19th century, sailors found a way to estimate latitude to locate themselves at sea. 
They relied on a well-known fact: the height of celestial bodies depends on latitude. 
Soon other instruments were added to the quadrant, the nautical astrolabe and the crossbow. 
Pedro Nunes (Portugal) invented the vernier, a method of dividing scales, and created others 
Instruments with innovative design. Dimensions: Diameter: 40mm / Width: 21mm / Thickness: 4mm

Material: Zamak (zinc aluminum magnesium copper alloy) with brass plating
The item is delivered on a velvet ribbon with a gift box and multilingual instruction manual (French, Italian, Spanish, English). Height sundial. It is so called because the constructive parameter is based on the altitude of the Sun. This ring is available in the version for 50° width and can therefore be used in Germany. In the 15th In the 19th century, sailors found a way to estimate latitude to locate themselves at sea. They relied on a well-known fact: the height of celestial bodies depends on latitude. Soon other instruments were added to the quadrant, the nautical astrolabe and the crossbow. Pedro Nunes (Portugal) invented the vernier, a method of dividing scales, and created others Instruments with innovative design. Dimensions: Diameter: 40mm / Width: 21mm / Thickness: 4mm Mat