Beschreibung:

JAMSHID BIN MAS'UD BIN MAHMUD AL-TABIB AL-KASHI KNOWN AS GHIYATH (D. 1429 AD): MIFTAH AL-HISAB SIGNED IBN MUHAMMAD MU'MIN TAJ AL-DIN AL-SHIRAZI, IRAN, DATED 7 SHA'BAN AH 1066/31 MAY 1656 AD Al-Kashi's important astronomical treatise dedicated to the Timurid ruler Ulugh Beg's library, Arabic manuscript on paper, 151ff. plus seven flyleaves, each folio with 18ll. of black naskh , titles and important words in red, text within gold, black and blue rules, numerous tables and diagrams in gold, black and red, with catchwords, opening bifolio with floral illumination, colophon signed and dated, occasional marginal notes, later ownership inscription and rubbed seal impression on final folio, in tooled red morocco Text panel 4 5/8 x 2 ¼in. (11.8 x 5.6cm.); folio 7 ½ x 4 ¾in. (19 x 12.1cm.)