Display of signal

It shall be the duty of every pilot on taking pilotage charge of any vessel to cause to be displayed from the masthead of such vessel such flag or other signal which may be specified in the International Code of Signals to signify that such vessel is provided with a pilot: Provided that if the master of the vessel prevents the pilot from having such flag or other signal displayed, such master and not the pilot shall be guilty of an offence against these Regulations. etc.