An Austrian lacquered-brass armillary sphere
W. GRUND, PRAGUE; early 20th Century
with central brass Sunball surrounded by five graduated rings (representing the celestial equator, ecliptic, tropics and meridian), on black cast iron tripod base with three star constellation attachment, two graduated arcs attachments, two brass convex attachments, and a terrestrial globe attachment
An Austrian lacquered-brass armillary sphere
W. GRUND, PRAGUE; early 20th Century
with central brass Sunball surrounded by five graduated rings (representing the celestial equator, ecliptic, tropics and meridian), on black cast iron tripod base with three star constellation attachment, two graduated arcs attachments, two brass convex attachments, and a terrestrial globe attachment
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