Title: Sefer Petiḥat ha-Igrot
Description: liḳuṭe heʻarot ʻal sefer igrot Moshe meluḳaṭ mitokh lamaʻalah me-ḥamesh meʼot sefarim
Subjects: Responsa, History and criticism, Jewish law, Interpretation and construction, Igrot Mosheh (Feinstein, Moses)
People: Moses Feinstein (1895-1986)
Time periods: 1948-