Telescope speculum grinding tool for Lord Rosse's 72-inch telescope at Birr Castle, Ireland mb-code 1239134 and was chosen to succeed

and was chosen to succeed Napoleon III

more than any of their previous models

Parish Work House

Giuseppe Farina and Mike Hawthorn

View of a glass works furnace in operation with glassworkers shaping and blowing molten glass

Telescope speculum grinding tool for Lord Rosse's 72-inch telescope at Birr Castle, Ireland mb-code 1239134 and was chosen to succeedPlate 24 figure 3 from the paper 'On the construction of specula of six feet aperture; and a selection from the observations of nebulae made with them', by William Parsons, 3rd Earl of Rosse, Philosophical Transactions of the Royal Society, volume 151 (1861) pp. 681 746. A rear view of the cast iron grinding tool used to produce the speculum (mirror) of the reflecting telescope at Birr Castle, Parsonstown, Ireland. The circular tool is shown suspended