Seder Tefiloth mikol HaShanah al-pi Nusach Ha'Ari z”l. According to the Custom of Isaac Luria (Nussach AR”I). Arranged and with an extensive commentary by Schneur Zalman of Liadi (The Alter Rebbe).

rare first edition of the Alter Rebbe's siddur. During the life-time of the "Alter Rebbe," R. Shneur Zalman of Liadi (1745-1813), his unique text of the prayers, based upon the rite of R. Isaac Luria, was published in a very condensed format in Shklov in 1803 (see Habermann, Sha’arei Chabad, no. 135). However, this earlier prayerbook was devoid of Chassidism per se, offering only general instructions and “pesakim” (legal decisions). Following the death of R. Shneur Zalman, his son and successor, R. Dov Ber (1773-1827), the “Mitteler Rebbe,” issued for the first time what has come to be known among Chabad Chassidim as the “Siddur ‘im Da”ch” (Siddur with Chassidic discourses; Da”ch initials “Divrei Elokim Chaim,”) - more simply, “Der Alter Rebbe’s Siddur.” The present siddur therefore, may be said to rank among the most important of Chassidic printed books - and certainly the most significant within Chabad philosophy.