Johannes Henricus Zaaijer. Photograph of drawing by J. Boon, 1930.
- Boon, Jan, 1882-1975.
- Reference:
- 9808i
Licence: Public Domain Mark
Credit: Johannes Henricus Zaaijer. Photograph of drawing by J. Boon, 1930. Wellcome Collection. Source: Wellcome Collection.
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