The original of this cup, used for the recital of blessings over wine to mark the commencement of Shabbat and other festivals, was presented to the Frankfurt synagogue from the estate of Michael J. Speyer in 1764. In November 1938, the director of the Historisches Museum saved the cup and other items in the Museum of Jewish Antiquities from being confiscated by the Gestapo. In 1951 it was passed on to the Israel Museum in Jerusalem by the Jewish Cultural Reconstruction.
The inscription reads: “Cup of David by which to thank God in song and joy. Donated to the honour of God by the famous elder and benefactor, the honourable Mr Michel, son of Mr Jossel, Speyer, blessed be the memory of the just, who gave with a pure heart. He donated a significant sum for a number of good things, and among those that he gave the synagogue was this cup with which to recite kiddush on each holy day. His sacrifice will be ‘a memorial before the Lord eternally’ [Exodus 28:29]. His heirs have fulfilled his wish and testament today, Wednesday, 2 Tevet 5525 [25 December 1764, i.e. 30 days after his death].”
The illustration shows the struggle of Jacob with the Angel (Genesis 32:25). On the other side of the cup is the Sacrifice of Isaac (Genesis 22:9–12) and Jacob's Ladder (Genesis 28:12).