Details of exhibit
- Exhibition:
- 1903 Forty-eighth Annual Exhibition of the Royal Photographic Society of Great Britain
- Exhibit title:
- Solar, calcium and iron spectra obtained with the 21 feet focus concave Rowland grating
- Exhibitor:
- Sir Norman Lockyer
- Section:
- Scientific, Technical and Photo-Mechanical Exhibits
- Exhibit No.:
- 379
- Exhibit type:
- Photograph
- Process:
- [Not Listed] ()
- Award:
- none
