A purple grid overlaid with a denser red grid, and a red grid overlaid with vertical line
- Bishop, Mary (Mary Cecil Hamilton), 1914-1990
- Date:
- c.1955-1977
- Reference:
- 2897479i / 2897480i
Licence: In copyright
Credit: A purple grid overlaid with a denser red grid, and a red grid overlaid with vertical line. Source: Wellcome Collection.
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