No person shall knowingly sell, expose or offer for sale any sick or diseased animals, poultry or fish to be used or eaten for food, or the flesh of any sick or diseased or otherwise unwholesome dead animal, poultry or fish, or the flesh of any animal, fowl or fish not usually used or deemed wholesome for food, or any unwholesome provisions or articles of food whatsoever, or any adulterated or pernicious milk, drink or liquors. (R.O. 1929 Ch. XXV § 60)