Royal Research Ship Discovery II carried out scientific survey work into the biology of whales in the Southern Ocean and Antarctic waters between 1929 and 1951. She was named after Robert Falcon Scott's ship, the RRS Discovery, which was still in operation at the time
These Gentoo penguin eggs are thought to have been collected from the Falkland Islands when the ship was working on biological and hydrological surveys in the area between 1931 and 1933.
One of the eggs is illustrated with a Chinstrap Penguin and possibly an Adelie Penguin in the background (there is some artistic license with the markings). Another egg depicts the Discovery II and the third egg shows 'the boat's crew of Discovery II and Port Stanley'.