Armillary sphere for instructional purposes (in wood case, with two locks, no key) Armillary sphere for instructional purposes (in wo Astronomy 1850-1900
Armillary sphere with Newton's improved terrestrial globe on claw-foot stand by W. & T. Gilbert, London, early 19th century. Armillary sphere, 1801-1850 Astronomy 1819-1831
Utility model celestial sphere (armillary sphere) Utility model celestial sphere (armillary sphere) Astronomy 1965-1966
