Image of an egg stamped with the code 'Lion Mark UK54321 BB APR' and explanatory labels added as follows. 'Lion mark': British eggs from hens vaccinated against Salmonela and produced to a strict code of practice. '3': Farming method 0 - Organic, 1 - Free Range, 2- Barn, 3 Cage. 'UK': Country of Origin. '54321' Farm ID: A specific code denoting the actual farm where the eggs were produced. 'BB 15APR': Best Before Date