Casgliadau Arlein

Print of a map showing Powell Duffryn Ltd. generating stations and transmission lines. Off-white paper with the map printed in black ink and the details of the power transmission lines and the power stations in red. There is a key for the map in the bottom right hand corner and a list of statistics for the installed capacity at the top of the document (both printed in red). Scale - 2 miles to an inch. Loose within peach card file with other documents relating to Powell Duffryn Electrical System.