Leiner, Gershon Chanoch. Sidrei Taharoth [commentary collecting all of the Talmudic literature pertaining to the Tractate Keilim]

First appearance of the important map prepared by R. Gershon Chanoch Leiner (1839-91) 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 borders. Grandson of the Rabbi Mordechai Joseph Leiner of Izbica, the author (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, this copy features two additions not in Wajntraub: Contains the personal stamp of Rabbi Gershon Henoch Leiner and portions of the map are hand-colored in blue, pink, yellow and brown.