Volume of 20 charts relating to the position and maintenance of the Sennen Cove - Bay Roberts and Bay Roberts - Hammel cables. Annotated printed charts; portions of printed charts pasted to blank chart paper with manuscript details; pre-printed chart forms with manuscript detail. Volume also contains the cartouche cut out from map no.20 to allow cable routes to be drawn in. STC volume number 163. Bound by Metchim and Son.