Letter and Signed Documents from the Rebbe of Toldot Aharon, R. Avraham Yitzchak Kahn

Autograph letter signed by R. Avraham Yitzchak Kahn, Rebbe of Toldot Aharon, and three documents, two of which are signed by the Rebbe.
* Autograph letter signed by R. Avraham Yitzchak Kahn (approximately 24 lines). Beit Chilkiya, [1962]. The letter was sent to one of the Rebbe's followers in Mexico, and contains encouragement for his mission there: "May G-d open the gates of success before you, since every step that we take is guarded by Him. The Zohar explains that one who is in a state of development and growth is in partnership with the Shechina, and therefore becomes worthy of salvation." The Rebbe signs the letter with New Year's greetings: "Since the holy days of Rosh Hashanah and Yom Kippur are approaching, may we merit returning to G-d wholeheartedly, and may the New Year and its blessings begin."
* Three documents regarding the charity fund established by Avraham Aharon Frankel: will of Avraham Aharon Frankel, committee protocol and letter of agreement. All the documents are signed by Avraham Aharon Frankel, and two are signed by the committee members, headed by "Avraham Yitzchak Kahn".
R. Avraham Yitzchak Kahn, Rebbe of Toldot Aharon, was a descendent of R. Avraham Yitzchak ben R. Shmuel Heller, rabbi of Safed. He was born in Safed in 1914, and emigrated with his family to Sighet (Sighetu Marmatiei, Romania) in 1918, where he became a student of R. Yoel Teitelbaum in Satmar. In Europe, he married the daughter of R. Aharon Roth, author of "Shomer Emunim", and became his disciple, returning with him to Eretz Israel in 1939. Following his father-in-law's passing in 1947, he became Rebbe of "Toldot Aharon" - a new chassidut that soon established itself as a dominant force in Jerusalem. His opinions regarding Chassidic matters, religious battles in Jerusalem and separation from the Zionist mainstream were regarded as decisive and binding by many. After his passing, his sons became the Rebbes of "Toldot Aharon", "Toldot Avraham Yitzchak" and "Mevakshei Emunah".
Aerogram + 4 typewritten pages. Size varies. Good condition.