Sefer Agor, laws and customs, by Rabbi Ya'akov Landau [1545-1546]. Justinian Press.
Among the basic books of Ashkenazi laws and customs during the period of the Rishonim. Printed together with "Sefer Chazon" (separate title page), halachic riddles and their solutions, by author of Sefer Ha'Agor. Among the first books of riddles in the halachic literature.
132, [4] leaves. 21 cm. Especially fine copy upon white pages, high quality paper. Good condition, stains. Cut margins on two leaves. Ownership notation in Italian handwriting [partially erased]. Restored wooden binding and leather spine.