Spasm of m. corrugator supercilii under very strong light (left); A relaxed face (photographed in full sunshine) (right)
- Medium
- albumen print
- Dimensions
- image: 22.9 × 16.9 cm (9 × 6 5/8 in.) mount: 40.3 × 27.6 cm (15 7/8 × 10 7/8 in.)
- Genre
- Photograph
