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Image
Has Image
2
Non-Commercial Use
2
Category
Astronomy
2
Maker
James Hall Nasmyth
2
Nasmyth, James
2
Object type
astronomical instrument
2
component
2
component; mirror; flat mirror; metal mirror; astronomical instrument
2
flat mirror
2
metal mirror
2
mirror
2
Place
Patricroft
2
Patricroft, Salford, Greater Manchester, England, United Kingdom
2
Material
speculum (alloy of copper and tin with arsenic)
2
Date
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Speculum Mirror, 1850-1870
1850-1870
Speculum Mirror, 1850-1870
1850-1870
