Africa 1:250,000 : Sierra Leone.
Great Britain.War Office.General Staff.Geographical Section
[London] : War Office,
1910-23
Relief shown by form lines and spot heights..
Initially given sheet numbering system similar to TSGS 1764, but with blocks divided into 24 sheets, numbered A to X. Later versions (from 1912) have blocks with International Map of the World numbering system, individual sheets still numbered A to X.
Graphic index in GSGS central file.
[58]NC28-Q&R: Scarcies -- [58]NC28-W&X: Ronietta -- 59-M: Falaba -- 59-N: Tembikunda -- [59]NC29-S: Panguma -- 59-T ; NC29-T: Kissi -- [70]NB28-E&F: Sherbro -- 71-A: Bandajuma -- 71-B: Gola