A collection envelopes signed by important Rabbis

Six envelopes, signed in handwriting of important Rabbis.
Five envelopes addressed to Rabbi Avraham Yitzchak Tucker, author of books, 'Bikurei Eretz', signed by Rabbi Shlomo Zalman Auerbach (1910-1995), main halacha ruler, author of 'Maadanei Eretz' and head of Yeshivat Kol Torah; Rabbi Zevulun Graz(1903-1991), head of the Beth-Din of Rehovot; Rabbi Dov Yafe, Rabbi for moral affairs at the Yeshiva of Kfar Hasidim and member of Council of Torah Sages; Rabbi Yitzhak Zilberstein, Rabbai of Ramat Elchanan neighborhood in Bnei Brak, and head of a kollel in Holon; The Kabbalist Rabbi Yehuda Halevi Segal (1924-2001), rabbi of Kiryat Shalom neighborhood in Tel Aviv.
Another envelope, addressed to Rabbi Zelig Reuven Bengis (1864-1953), head of Beth-Din of the ultra-Orthodox community in Jerusalem, sent by Rabbi Chaim Shechnovitz, Rabbi at Kaminitz Yeshiva in New York and later a Rabbi in Chicago, author of the book 'Totsaot Chaim'.
Condition: Fair-Very good.