Scale: circa 1:1,000,000 (bar). Chart with fifteen insets. Magnetic variation marked. Coordinates given. Backed with cloth.
Insets: [1] Analabu circa 1:70,000 (bar); [2] Kwala Batu and Susu circa 1:60,000 (bar); [3] Bubu circa 1:75,000 (bar); [4] Mukkie Bay by J.D. Gillis 1832 circa 1:60,000 (bar); [5] Tampat Tuen Bay By J.D. Gillis 1831 circa 1:60,000 (bar); [6] Trumon Road 1841 circa 1:250,000 (bar); [7] Baros Road by J. van Maurik circa 1:100,000 (bar); [8] Ayer Bangues Road By Osthoff 1835 circa 1:200,000 (bar); [9] Priaman Road By J.B. De Perez, J.E. Jansen and H.L. Osthoff circa 1:100,000 (bar); [10] Tiko Road 1837 circa 1:50,000 (bar); [11] Cedar and Surat Passages circa 1:350,000 (bar); [12] Rajah Passage By J.D. Gillis 1834 corrected 1878 Sumatra circa 1:30,000 (bar); [13] Tabujon Road 1836 circa 1:170,000 (bar); [14] Rigas Bay By J.D. Gillis 1834 corrected to 1878 circa 1:75,000 (bar); [15] Natal Road 1836 circa 1:100,000 (bar).
Bibliography: No. 40 in a folder compiled by J.D. Potter Ltd.; see 298:8/3(b) for original folder list.