US$ 295.00
Section through a tent observatory used for pendulum observations
is burnt down in the Icelandic saga Njal's Saga
Tycho Brahe's great azimuth semicircle ('Semicirculus magnus azimuthalis') in his Uraniborg observatory on the island of Hven
it had one head
Ship Indicator Canute the Great Section through a tent observatory
US$ 295.00
US$ 179.00
US$ 131.00
US$ 106.00