seen from United States
seen from China
seen from Germany
seen from Russia
seen from United States
seen from United States
seen from Brazil
seen from Angola
seen from United States
seen from Singapore
seen from Russia
seen from Germany
seen from China
seen from United States
seen from United Kingdom
seen from Russia
seen from China
seen from Serbia
seen from United States
seen from Serbia
Universal ring dial: Late 17th century
These dials can be used in any latitude, except in the polar regions, for telling the time and calculating the altitude of the sun. Thomas Tompion (1639-1713) was renowned for his horological expertise, but also made scientific instruments for members of the Royal Society.
