Section 7 in The Vizagapatnam Harbour Craft Rules, 1950
7. Distinctive numbering of licensed harbour craft.
(1)The owner of a licensed harbour craft shall paint or cause to be painted upon a black ground, in white, English figures not less than six inches in length, on a conspicuous part of the bow of such harbour craft on one side and of the quarter on the other, the number of the harbour craft as mentioned in the licence.(2)No person shall paint or cause to be painted or counterfeited upon any harbour craft not duly licensed under rule 4, any such number as aforesaid or any other mark likely to induce the belief that such harbour craft has been so licensed.
