[Super exposed spectra showing clark bands on reverse sides]
Photograph
[Super exposed spectra showing clark bands on reverse sides]
1906–1908
Lippmann plate
Image: 7/8 × 1 9/16 in. (2.3 × 4 cm)
Overall (prism): 1 5/8 × 1 9/16 × 1/4 in. (4.1 × 4 × 0.6 cm)
Mount (glass): 2 13/16 × 2 13/16 in. (7.1 × 7.2 cm)
Other (housing): 6 3/4 × 4 3/4 × 1 in. (17.2 × 12 × 2.5 cm)
Gift of Mrs. Herbert E. Ives
1981.3015.0010
Inscriptions Inscribed on envelope: 14 \ Super exposed spectra, showing clark bands on reverse sides.
