Printed on top of tin: "12 // TRADE MARK // 'VAPOROLE' BRAND // AROMATIC AMMONIA // (FOR USE AS "SMELLING SALTS") // DIRECTION.- The capsule enclosed in the // silken sac to be broken between the fingers // and the vapour carefully inhaled. // BURROUGHS WELLCOME & CO. // (THE WELLCOME FOUNDATION LTD.) // LONDON (ENG.) AND MONTREAL"