Collection of various letters, by heads of yeshivot, mashgichim and rabbis, 20th century. Letters by: Rabbi Yechezkel Levenstein; Rabbi David Povarsky, head of the Ponovezh Yeshiva, Bnei Brak; letter signed by Rabbi Meir Karelitz and Rabbi Chizkiyahu Yosef Mishkovsky, Av Beit Din of Krynki, letter by Rabbi Shmuel Greineman [brother-in-law of the Chazon Ish]; letters by Rabbi Meir Chadash, Rabbi Mordechai Gifter, Rabbi Shlomo Wolbe, Rabbi Simcha Zissel Ziskind Broide and many others. (For a complete list, see Hebrew description). 19 letters, size and condition vary. Overall good condition.