The first Ottoman book on the modern geomagnetism and binnacle, including an almost always missing rotating volvelle

Small 4°: 332 pp. with an illustrated title page, charts and one illustrations, 3 double-page illustrations including a colour lithograph, folding chart, a page with mounted volvelle, composed of two parts and a string and instructions on the last page, original errata printed on a smaller brown sheet, detached from the title page, contemporary debossed dark green cloth binding, brown calf spine, original yellow endpapers.

(Minor age-toning and foxing, tiny partly repaired tears in margins and folds, tiny cracks in the spine, old repaired tiny losses of paper in endpapers, splits at the gutter in the front endpapers and in the last part of the book without loose sheets, overall in a good condition).