small heliostat on mahogany base/stand with clockw

Made:
1875-1885 in Dublin
maker:
Spencer & Son

small heliostat on mahogany base/stand with clockwork drive, by Spencer and Son, Dublin, c.1880., owned and used by Sir William Abney, Royal Engineers, incomplete, lacks mirror

Details

Category:
Astronomy
Object Number:
1921-106
Materials:
brass (copper, zinc alloy), glass, iron, mahogany (wood), metal
type:
heliostats (astronomical)
credit:
Lady Abney
status:
Permanent collection

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