21. University of Pennsylvania, Halper 389 DS ID: DS26067 Title: Letter Author: Salamah ben Musa ben Yitsḥaḳ Place: Sicily Date: 1064?
22. University of Pennsylvania, Halper 397 DS ID: DS26087 Title: Letter Author: ʹAli ben Yeḥezḳel, ha-Kohen, 11th century Place: Jerusalem Date: 1060?