Lot Essay
James Parsons is recorded as working between 1837-1890 from seven addresses within London
Details
A mid 19th-Century brass cannon dial signed James Parsons
incorporating an inset compass with blued-steel needle, the gnomon with sight over firing hole of the tapering cannon and hinged magnifier over sight, the weighted-dial set in a gimball and mounted in a stand -- 9¾in. (25cm.) high
See illustration
incorporating an inset compass with blued-steel needle, the gnomon with sight over firing hole of the tapering cannon and hinged magnifier over sight, the weighted-dial set in a gimball and mounted in a stand -- 9¾in. (25cm.) high
See illustration
Literature
Clifton, G: Directory of British Scientific Instrument Makers 1550-1851, Zwemmer 1995