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Id no. 2002.A.319, Document, Hebrew
The text translates: Dear Sir, I received the "Eye of Jacob" and the travel brochures and I paid for everything 100%. Please send me 3 copies of the Gates of the World; 15 copies of tractate... According to our account there are 13 franc remaining besides the 42,000 from 16/viii.
Rosenkranz and Szriftzecer, in Vilna, published and sold books throughout the Jewish world.