Crookes Halibut Oil : scientifically extracted. Deodorized and clarified. Spectrographically and biologically tested.
- Date:
- [between 1930 and 1939?]
Licence: In copyright
Credit: Crookes Halibut Oil : scientifically extracted. Deodorized and clarified. Spectrographically and biologically tested. Source: Wellcome Collection.
