Watermark: GiorMagnani Almasso with scrollwork. See Edward Heawood, Watermarks, Mainly of the 17th and 18th Centuries (Hilversum, 1950), no. 3748.Contains geometrical diagrams and tables.Text rubricated; borders in blue and red; marginal notes in hand of copyist.For other copies of this text see Mich. Isl. Mss. 731 and 815,2."A compendium of arithmetic." Cataloging by Elinor M. Husselman, 1945.