Grinding tool used with 6-foot speculum mirror

Made:
1840-1850 in Republic of Ireland, Leinster and Birr
maker:
William Parsons

Grinding tool used with 6-foot speculum mirror by Lord Rosse

Details

Category:
Astronomy
Object Number:
1914-373
Materials:
iron
Measurements:
overall: 150 x 2000 mm
type:
tools (mirror grinding)
credit:
Lord Rosse (5th Earl)