Watermarks: initials AG in roman; stars in shield with crown. See Edward Heawood, Watermarks, Mainly of the 17th and 18th Centuries (Hilversum, 1950), p. 36 and nos. 860 and 3886.Text rubricated; copy incomplete.Date of mid-19th century based on author's death date."A commentary on Wasīlat al-mubtadiʾīn li ʻilm ghurrat al-shuhūr wa 'l-sinīn, a poem in 48 verses on the calendar by the same author." Cataloging by Elinor M. Husselman, 1945.