Certificate of rabbinic ordination and permit to render halachic decisions by Rabbi Chaim Berlin. [11 lines] handwritten, with the addition of his signature and stamp. Jerusalem, 1910. As a declaration regarding the recipient, this certificate is given in recognition of the great rabbi … Moshe Ostrovski … Yoreh Yorah and Yadin Yadin … May G-d elevate him with the respect due him.” Stamp text: “Chaim Berlin, son of the gaon, the Netzi”v ztz”l, previously rabbi of Moscow and Av Beit Din and lecturer in Volozhin, presently in Jerusalem,” with a short inscription in English. The leaf continues with an additional certification of ordination for the same Talmudic scholar by Rabbi Avraham Yitzchak HaKohen Kook, handwritten, signed, and stamped by him. Jaffa, 1912. Rabbi Kook added his certificate of ordination [7 lines] to that of Rabbi Chaim Berlin. “I have nothing to add to the elder rabbi’s declaration.” Signed and stamped by him as rabbi of Jaffa and the colonies, in Hebrew, English, and Arabic. Rabbi Chaim Berlin [1832-1912] son of the Netzi”v of Volozhin, among the most well-known rabbis of his generation, served as Chief Rabbi of Moscow and rosh yeshivah of the most famous yeshivah in the world, Volozhin, known as “the mother of yeshivahs” [“אם הישיבות”]. He ascended to Jerusalem in 1906 where his authority and greatness were recognized. He was appointed rabbi of the Ashkenazim in Jerusalem, succeeding Rabbi Shmuel Salant. Although he refused to serve in this position in an official capacity, in practice he did serve as chief rabbi of the Ashkenazic communities. Rabbi Avraham Yitzchak HaKohen Kook [1865-1935] was the leader of Religious Zionism, adjudicator and kabbalist. He served as rabbi in Zheimel and in Boisk, as rabbi of Jaffa and the colonies, and later as Askenazic rabbi of Jerusalem. He established the Chief Rabbinate of the Land of Israel and served as the first Chief Ashkenazic rabbi. Founder of HaYeshivah HaMerkazit HaOlamit, which is the Mercaz HaRav yeshivah. Rabbi Moshe Ostrovski-HaMeiri [1886-1947] moved from Russia to Jerusalem in his youth. He was one of the leading rabbis of the yishuv in Jerusalem, and served for a period as rabbi of Mazkeret Batya – Ekron. Among the founders of the Chief Rabbinate, he supported bringing Rabbi Kook to Jerusalem. He was one of the heads of Mizrachi and participated in all the movement’s conferences. He took part in writing Encyclopedia HaTalmudit. 14×22 cm. Rare certificate of ordination. Fine condition. Fold marks with tiny tears in the folds without damage to text.