Sir Henry Dale and Professor Otto Loewi outside the Grand Hotel, Stockholm at the time of the presentation to them of the Nobel Prize for the Physiology and Medicine, 1936.

Licence: Attribution 4.0 International (CC BY 4.0)

Credit: Sir Henry Dale and Professor Otto Loewi outside the Grand Hotel, Stockholm at the time of the presentation to them of the Nobel Prize for the Physiology and Medicine, 1936. Wellcome Collection. Source: Wellcome Collection.