Spectroscope from Norman Lockyer Observatory for solar work

Spectroscope from Norman Lockyer Observatory for solar work by John Browning with diffraction reflection grating ruled on speculum metal by D.C. Chapman with engine of Lewis Morris Rutherfurd, 24 April 1878, 17296 lines per inch.

Details

Category:
Astronomy
Object Number:
1987-1163
type:
spectroscope - solar and diffraction grating - reflection
credit:
Christie's South Kensington Limited