16. Distinguishing mark to be painted on each room, place and vessel.
- On the outside of the door of every room and place in which business is carried on, and on some conspicuous part of each vessel, there shall be legibly painted in oil colour the name of vessel, utensil, room or place according to the purpose for which it is intended to be used. If more than one room or vessel is used for the same purpose each shall be distinguished by a progressive number.
