Diagonals: six rows (left) and seven rows (right). Watercolour by M. Bishop, ca. 1977.
- Bishop, Mary, (Mary Cecil Hamilton), 1914-1990.
- Date:
- [ca. 1977]
- Reference:
- 2855770i
Licence: In copyright
Credit: Diagonals: six rows (left) and seven rows (right). Watercolour by M. Bishop, ca. 1977. Source: Wellcome Collection.
