O thou servant of God! Thy letter was received. Thou hast written that the publication of the book of Mirza Abul Fazl (The Bahá'í Proofs) is commenced
SW.Star of the West, 25 vols. (1910-1935). Periodical issued each Bahá’í month. Vols. 1-12 reprinted 1978 in 8 volumes by George Ronald. Each issue Includes a section in Persian. https://bahai.works/Star_of_the_West