<<Gershon Chanoch Leiner.>> Sidrei Taharoth [commentary collecting all of the Talmudic literature pertaining to Masechta Keilim].

<<First appearance of the important map prepared by R. Gershon Chanoch Leiner the innovative Chassidic Rebbe of Radzyn.>> Issued in connection with his commentary to Tractate Keilim, wherein Chapter I, Mishnah 6, states that the Land of Israel is holier than all other lands - thus the need for a map, clearly delineating its sacred borders. Grandson of Grand Rabbi Mordechai Joseph Leiner of Ishbitz, the author (1839-91, known as the “Ba’al HaTecheleth”) claimed to have discovered the natural source for the Techeleth (blue dye) for the Tzizith fringes - a secretion extracted from the cuttlefish squid. See E. & G. Wajntraub, Hebrew Maps of the Holy Land pp. 162-4 who records this map with the dimensions: 370 x 230 mm. <<The present copy of the map is far larger>> (490 x 260 mm). Furthermore, the present copy features two additions unknown to Wajntraub: The personal stamp of Grand Rabbi Gershon Henoch Leiner and <<portions of this map are hand-colored>> in blue, pink, yellow and brown.