The joint collection includes several works that had been on loan to the MFA and became popular with visitors. Gerrit Dou's Dog at Rest (1650) was one such work, described by the MFA's senior curator for painting Ronni Baer as a particular highlight. Willem Kalf's Still Life With aucked Lemon (1664) is a rare well-preserved example that illustrates why the painter is sometimes called 'the Vermeer of still life.' The most celebrated work in the joint gift is Rembrandt Harmensz. van Rijn's Portrait of Aeltje Uylenburgh (1632), considered one of the finest and best-preserved Rembrandt portraits in private hands. The painting, in nearly perfect condition, displays delicate tones of black-on-black and virtuosic control of the brush. Aeltje Uylenburgh was the cousin of Rembrandt's wife-to-be, Saskia, and of the prominent art dealer Hendrick Uylenburgh, with whom Rembrandt lived when he first arrived in Amsterdam. The gift of this portrait brought the number of Rembrandt paintings in the MFA's collection to six. Other notable artists in the joint collection include Peter Paul Rubens, Anthony van Dyck, Jan Brueg the Elder, Jan Steen, Jacob Isaacksz. van Ruisdael, Willem van de Velde the Younger, Rachel Ruysch, and Osias Beert.