Passports are required when going to or coming from Ostend or Helvertsluys
General Post-Office, November 14, 1778
Raguin Code: NEWS –7802
No Person can at present be permitted to go out of England in any of the King's Packet Boats from Dover or Harwich, without producing a Passport from one of His Majesty's Principal Secretaries of State. Neither can any Person coming to England be received on Board the Packet Boats at Helvoetsluys or Ostend, without a Passport from His Majesty's Ambassador at the Hague, or from His Majesty's Consul or Vice Consul at Ostend.
ANTH. TODD, Secretary.