Wavelength scale for quartz spectrograph

Made:
1920-1929 in London
maker:
Adam Hilger Limited

Wavelength scale for quartz spectrograph, by Adam Hilger Ltd., London, England, 1920-1929

Details

Category:
Meteorology
Object Number:
1995-1880/1
Materials:
glass
type:
wavelength scale
credit:
Meteorological Office