Lowry, W

 
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Troughton's circle, 1817.
Troughton's circle, 1817.
'View of Sydney on the South side of Norfolk Island', 1798.
'View of Sydney on the South side of Norfolk Island', 1798.
Troughton's reflecting circle, 1817.
Troughton's reflecting circle, 1817.
Troughton's universal equatorial, 1817.
Troughton's universal equatorial, 1817.
Wollaston's circle, 1812.
Wollaston's circle, 1812.
Troughton's repeating circle without reflection, 1820.
Troughton's repeating circle without reflection, 1820.
Mendoza's circle, 1812.
Mendoza's circle, 1812.
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7 images in total
 
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