Dr. Isolde Dietrich, born on 21 November 1919 in Fürth, played a key role in the development of cryo-electron microscopy. The lens in the picture is SULEIKA (SUpraLEItende Kryo-Apparatur), from Isolde Dietrich's research on superconducting electron-optical devices, which led to the development of this helium-cooled lens. It was assembled at Siemens AG in Munich and then went to the Fritz Haber Institute in Berlin. Later it was integrated into the Philips CM20 TEM, now called SOPHIE, and brought by Holger Stark to the MPI in Göttingen, where it was used to collect many high quality data sets. We are pleased that we were able to temporarily exhibit one half of the lens for our opening symposium and the inauguration of the building in September '23.