Documento
Admiralty Chart No 2576 Sulu Archipelago, Published 1882
Nautical chart of the Sulu Archipelago. Chiefly from surveys made by Commr. Chimmo and the officers of HMS Nassau 1871-2; Lieut. R.F. Hoskyn and the officers of HMS Flying Fish 1881; and Commr. F.C.P. Verker and the officers of HMS Magpie 1883. Not current - not to be used for navigation!
OldMapsOnline CommunityUnited Kingdom Hydrographic Office
1882