Letter by the Rebbe Signed by the Secretary and "Mesamech Geulah Legeulah" in the Days between Purim and Pesach 1966
Letter by the Rebbe with a Promise to be Mentioned by the Ztiyun Signed by the Secretary - Tamuz, 1968
Corrections Handwritten by the Rebbe on a Copy of a Letter that was Sent before the 12th-13th of Tamuz
Historical! The Rebbe's Letter for the Conference during which His Nesi'ut was Declared Signed by the Secretary Rabbi Nissan Mendel - Elul 1950 before the Acceptance of the Nesi'ut
Rare! Addition Handwritten by the Rebbe on a Ma'amar by the Tzemach Tzedek
Rare! Igeret Kodesh before the Acceptance of the Nesi'ut Written Thirty Days after the Rebbe the Rayatz's Passing with a Significant Textual Variation compared to the Printed Version - Adar, 1950
Extremely Rare! Blessings, Rebuke and Overt Love in an Igeret Kodesh that was Only Partly Published with Many Additions Handwritten by Him: Blessings of "lhtslkhh bgv"r" v"lbryvt hnkvnh" - Iyar, 1954
Early Letter by the Rebbe, Lengthy and Special with Many Blessings and Additions Handwritten by HIm - Iyar, 1959
The 200th Anniversary of the Baal Shem Tov's Passing: Letter by the Rebbe with Blessings for the New Year and an Addition Handwritten by HIm - Days of Selichot, 1959
Letter by the Rebbe for Setting a Wedding Date - Tamuz, 1986
The Rebbe's Blessing for Kabalat HaTorah and Good Health Handwritten by HIm - Rosh Chodesh Sivan 1987