Torah Letter from R. Yosef Rosen Rabbi of Dvinsk, the Rogatchover - Dvinsk, 1929

Torah Letter from R. Yosef Rosen Rabbi of Dvinsk, the Rogatchover - Dvinsk, 1929
Torah letter on a postcard (written on both sides), handwritten by R. Yosef Rosen of Rogatchov. Dvinsk (Daugavpils), Elul 1929.
The postcard was sent to R. Yitzchak Yaakov Wachtfogel, dean of the Me'ah She'arim yeshiva in Jerusalem.
The letter contains novellae on the commandments pertaining to the land - Terumah, Challah and Orlah, and more. The letter begins: "Sunday, 17th Elul 1929, Dvinsk, I received his letter today, in which he wrote…".
This letter was presumably never printed.
R. Yosef Rosen (1858-1936) - known as the Rogatchover (after his birthtown Rogatchov-Rahachow), was a Chabad-Kopust follower. In his youth, he was a disciple of R. Yosef Dov Ber Soloveitchik, author of Beit HaLevi, together with the latter's son R. Chaim of Brisk. From 1889, he served as rabbi of the Chabad Chassidic community in Dvinsk, Latvia alongside the rabbi of the city, the Or Same'ach, a position he held for 40 years. A remarkable figure renowned for his tremendous sharpness and genius, he was well-versed in all areas of the Torah, down to its finest details, producing profound definitions, hypotheses and original methods of Torah study. Tales of his genius and indescribable diligence abound. His legendary brilliance was also highly regarded by the secular world in his days and Bialik reputedly said that "two Einsteins could be carved out from the mind of the Rogatchover". The Rogatchover dealt extensively in explaining the teachings of the Rambam and wrote numerous halachic responsa. His responsa and novellae were published in his Tzofnat Pane'ach series. His printed books are a small part of the incessant flow of the inexhaustible fountain of his Torah. Due to the profundity of his teachings and his concise, cryptic style of writing, several projects have risen in recent generations to decipher and explain his teachings, resulting in the publishing of annotated editions of his works.
[1] leaf (2 written pages). Approx. 15 cm. Good condition. Stains. Folding mark to center of postcard. Postal stamp removed.