France - Corsica cable, Toulon - Ajaccio. Approximate attenuation frequency characteristics

Blueprint grid chart.
1. Non-Loaded 600/650/1130; 2. Loaded 2x3 Mil. Rhometal 500/400/975; 3. Loaded 2 x 1 and half Rhometal 575/650/1130

Object Details

ID: PIR230:1/45(4)
Collection: Charts and maps
Type: Chart
Display location: Not on display
Creator: Siemens Brothers and Co Ltd, London
Date made: 1935
Credit: National Maritime Museum, Greenwich, London
Measurements: Overall sheet dimensions 26.5 cm x 44 cm; Bewtween neat lines 21.5 cm x 28 cm