Watson's Cough Drops

Colour trade card advertisement depicting an illustration of  a child shown six times showing a different expression each time. Caption states, ""How the doctor served me// Some jam, Hooray! Was that a powder?..." The caption at the bottom of the card states, "Watson's Cough Drops // are the best in the world for the throat and chest. //For the voice unequalled.  Try them.  R. & T. W. stamped on each drop.  The back of the card is blank.