Watson's Cough Drops

Colour trade card advertisement depicting an illustration of people laying on the top of a mountain /cliff, with one person pointing up to a staff (possibly religious) that is planted nearby. 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.