Letter from Rebbe Yosef Yitzchak Schneersohn – the Rayatz of Lubavitch, with his hand signature. Brooklyn NY, 29th Tishrei 1940.
Typewritten on the official stationery of Rebbe Rayatz, with his signature "Yosef Yitzchak".
Addressed to "the honored disciple" Yitzchak Shonberger in Jerusalem, in response to his question about teaching Chassidut to women. In his letter, the Rayatz responds that in this generation, teaching women Torah is allowed, especially recently: "When all educational matters are notoriously undisciplined, and young people read books of heresy; the poison of rejection of the Truth is increasingly spreading, it is a mitzva and duty to establish a pillar of fire to light up the dark".

The rebbe concludes the letter with blessings: "May G-d arouse our hearts, and the hearts of our brethren, sons and daughters of Israel… to serve him wholeheartedly, and fulfill the practical mitzvot with vitality and inner fervor, and study Torah with diligence, purity of heart and broadness of mind".
Ink stamp at the top of the letter (on the left), with the Rebbe's address (770 Eastern Parkway Brooklyn N.Y.).
The letter was printed in Igrot Kodesh of Rebbe Rayatz (vol. V, letter 1259), based on a transcript.
[1] leaf, official stationery. 15 cm. Thin paper. Stains. Placed in clingfilm.