Appendix C - Agreement between the United Kingdom and the Netherlands Relating to the Boundary between the State of North Borneo and the Netherland Possessions in Borneo. Signed at London, 28 September 1915

Summary

His Britannic Majesty's Government and the Government of Her Majesty the Queen of the Netherlands having agreed in a spirit of mutual goodwill to confirm the joint Report with the accompanying map prepared by their respective Commissioners in accordance with Article 5 of the Convention signed at London on the 20th June, 1891, for the delimitation of the boundary line between the States in the Island of Borneo which are under British protection and the Netherland possessions in that island, and relating to the boundary between the State of North Borneo and the Netherland possessions in the island; the undersigned duly authorized to that effect, hereby confirm the aforesaid joint Report and map, as signed by their Commissioners at Tawao on the 17th February, 1913.

The text of this joint Report, signed in English only, is as follows:-

We, the undersigned: J.H.G. Schepers, engineer of the Triangulation Brigade, Netherland India, E.A. Vreede, 2nd Lieutenant of the Netherland Royal Navy, appointed by Netherland India Government Resolution No. 1 of the 9th April 1912, and No. 38 of the 30th October 1912, respectively, as leader and Joint Commissioner of the Netherland Commission to delimitate on the spot the frontier between Netherland territory and the State of British North Borneo; H.W.L. Bunbury, officer of the First Class, British North Borneo Civil Service, G. St. V. Keddell, surveyor, appointed by commission from his Excellency the Governor of British North Borneo, dated the 30th May 1912, respectively, as Civil Commissioner and Surveyor representing the Government of British North Borneo; have the honour to report as follows:-

We have travelled in the neighborhood of the frontier from the 8th June 1912, to the 30th January 1913, during which period the Netherland Commission has made the necessary astronomical observations and topographical surveys, the results of which we declare to be correct and sufficient for the determination of the boundary.

Where physical features did not present natural boundaries conformable with the provisions of the Boundary Treaty of the 20th June 1891, we have erected the following pillars:-

(a) Two pillars on the opposite banks of the Pentjiangan River, both marked “G.P.1.”

(b) One pillar on the right bank of the Agisan River, marked “G.P. 3.”

(c) One pillar on the left bank of the Seboeda River, marked “G.P. 2.