M0005503: Determination of the longest day, Borneo
- Date:
- 4 August 1938
- Reference:
- WT/D/1/20/1/45/16
Licence: In copyright
Credit: M0005503: Determination of the longest day, Borneo. Source: Wellcome Collection.
Licence: In copyright
Credit: M0005503: Determination of the longest day, Borneo. Source: Wellcome Collection.
