NAUTICAL CHART SYMBOLS AND ABBREVIATIONS 



197 



ILLUSTRATING THE SYSTEM OF DUAL-PURPOSE MARKING 

 WHERE THE ICW AND OTHER WATERWAYS COINCIDE 



SKETCH A: 



ICW joins another waterway, which is 

 numbered from seaward, at buoy No. 2 and is 

 common with it to buoy No. 9. ICW numbers 

 and yellow borders are omitted in this sec- 

 tion but the A or n is used on the regular 

 aids to designate the ICW. 



SKETCH B: 



ICW joins another waterway at buoy 

 No. 8 and is common with it to buoy No. 3. 

 This section is numbered in the opposite di- 

 rection to that of the ICW. The ICW num- 

 bers and yellow borders are omitted from the 

 regular aids but a A or D is shown to desig- 

 nate the ICW. 



