Siddur Ohr Yesharim (Jerusalem, 1978), from which the great Kabbalist Rabbi Yitzchak Kaduri prayed for many years, begging and pleading about individual and communal suffering.
Unique Features: The publisher Yitzchak Ezra Bakel dedicated this prayer book, and wrote on the endpaper: "To my friend Rabbi Yitzchak Kaduri, in appreciation, Yitzchak Bakel, publisher". 
The publisher brought the prayer book to Rabbi Kaduri before its printing to receive his approbation for publication, and so it was. He published it in 1978 and immediately gave a copy to Rabbi Kaduri in appreciation. 
Rabbi Kaduri himself signed his name above the aforementioned dedication.
In 2008, his son, Rabbi David Kaduri, testified in his handwriting at the end of the siddur: "My father, of blessed memory, prayed for the entire Jewish people from this siddur on weekdays for many years."
Small leaves are scattered among the siddur's leaves, on which Rabbi Kaduri wrote names of sick people and those in need of salvation in his handwriting, as well as diagrams of lots he had drawn.
Background: Rabbi Yitzchak Kaduri was born on October 2, 1898 in Baghdad, and named Yitzchak after the Ushpizin of the day he was born. He met the Ben Ish Chai when he was young, and delved into the secrets of the Talmud, in which he excelled. After immigrating to Israel in 1922, he learned in the Shoshanim L'David Yeshiva and the Porat Yosef yeshiva in the Old City. He began studying Kabbalah after his marriage, eventually becoming the elder of the Kabbalists in Israel. He also served as Rosh Yeshiva of the Kabbalist yeshiva Nachalat Yitzchak in Jerusalem until the end of his life. He was known for his work Pitchei Olam on the topic of various segulot and amulets. He died on January 29, 2006.
Condition: Fine. Reinforcements in the margins.   
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