(i)Rooms and vessels to be marked and numbered : The distiller shall cause to be painted with oil colour and shall keep so painted upon the outside of every room or place and upon a conspicuous part of every vessel and utensil the name of such room, place, vessel, or utensils, according to the purpose for which it si to be used, and, when more than one room, place, vessel, or utensil is used for the same purpose, he shall also paint a progressive number of each, beginning with the number one.
