Title: Kitāb al-jadwal al-mubārak fī ʻilm al-zamān wa-al-falak fī ḥisāb madākhil al-ashhūr al-ʻArabīyah wa-al-Rūmīyah
Subjects: Arab Astronomy, Arabic Manuscripts, Early works to 1800, Time measurements
Places: Washington (D.C.)