Scale circa 1:400,000 Bound in 1906 Guam - Bonin cable folder. Chart No 8. Black and white chart. Mss cable routes marked in blue and pencil. Mss note 'The soundings shown on this chart in blue are taken from charts lent by the Commercial Pacific Cable Co' The soundings shown on this chart in green are taken from Japanese Naval Chart No 83. Corrections to III 98'.. Mss text * This descrepancy between distance and length of cable occurs between posiiton by bearings of the Coffin Group & positions by observations and is probably due to the inaccuracy of the land as charted'. Text 'Siemens Brothers & Co Ltd London, SS "Urmston Grange" May 1906, W. Dieselhony, 14/6/06'.