This is a RARE piece of advertising history from the 1940s.  Designed to promote Royal Crown Cola, it depicts a blonde movie star flashing an RC and a smile.  The one-sided posterboard sign was most likely used at the point of sale. Dimensions are approximately 26 x 39 inches.  Overall condition is excellent, with only minor signs of age.  I had this poster professionally framed, but it will be shipped unframed unless the buyer requests otherwise (for additional postage).