Metal box approximately 11 x 8 x 2.5cms. Printed to the lid 'Horlicks Tablets - A Complete Food - 24 Hour Ration - As Supplied To The Air Ministry'. It is interesting to note that there are at least two versions of this size of tin, each with slightly differing text. Shows use and wear, notably to the base, but in good overall condition. Empty. Stock code S27473.