"Vista del fuerte de Sipac"

"This finely rendered campaign map of islands in the Samales Group in the Sulu Archipelago documents the February 1848 Spanish naval attack on the island of Balanguingui. In the 1840's, the Spanish government in the Philippines had entered into a series of treaties related to trade and allegiance with Muslim rulers in the southern islands. When these treaties were broken by the Muslim leaders, Spanish Governor General, Narciso Clavería, organized a naval expedition that left Manila on February 9, 1848 to attack Muslim strongholds on Balanguingui (especially those at Sipac, Sungap, and Balanguingui). As a result of that successful campaign, Spain strengthened its authority over the region. Map includes coastlines, coastal features, soundings, various categories of Spanish and Muslim vessels, and settlements; also includes detailed pictorial representation of island vegetation and a panoramic profile view: "Vista del fuerte de Sipac". Map contains a brief note on the naval situation on the day when Fort Sipac surrendered. For more information on this event and on Philippine history, see Antonio M. Molina, Historia de Filipinas (Madrid: Ediciones Cultura Hispanica del Instituto de Cooperacion Iberoamericana, 1984) 2 vols. This map is part of the G&M Division's collection from the Real Escuela de Navegación, Cadiz, Spain purchased from Maggs Brothers, London."

Source: 

[1] - http://lccn.loc.gov/90680732

[2] http://www.loc.gov/rr/geogmap/luso/philippines.html