Tshuvot Harav, 517 questions and answers on various matters, by Rabbi Yitzchak Bar Sheshet – the Ribash. Constantinople, 1547, Eliezer Soncino Print. First Edition.
The Rivash was born in Spain in 1326 and died in Algeria in 1408. His master was Rabbi Nissim bar Reuven – the Ran. He also received Torah from rabbi Chasdai Karkash and Rabbi Peretz HaCohen.
This book is one of the foremost books of responsa written by Rishonim. It was printed in pamphlets and distributed on Shabbat in synagogue, as was tradition in Constantinople in that time. Some of Constantinople's rabbis were opposed to this custom, and it was a topic for halachic debate among the rabbis. See A. Ya'ari, the Hebrew Print in Constantinople, Jerusalem 1967, page 103, no. 145.
Several old glosses and corrections appear inside the book.
The index is not in place. Some leaves are missing, altogether there are 293 leaves out of 303.
The first leaf of the indexes is a facsimile and the leaf preceding it is taken from a different copy.
[293] leaves, 27.5 cm. Good condition. Thick, high-quality paper, wide margins, most of the leaves are white and clean.
The title-page has been professionally restored. There are dark stains on the last leaves, and some are reinforced by paper. Four leaves have moth holes. Unoriginal leather cover.