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 Trawl or dredge 



Cor. 



Drift 



SOUNDING WIRt. 



DOWN. 



OIL 



to i&.oo 



I A71 



f 



'IN C 



300 



400 



f,C*> 



7'" 



900 

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I UNI 



I $00 



If -TO 



• 1700 



aioo 



2300 

 7400 



DREDGE ROPE 



DOWN. 



VP. 



