Printed shortly after the 1978 rate change, the “B” stamps were put in storage until they were needed in 1981. The same stylized eagle used on the “A” stamp was used for this stamp. The only difference between the two stamps was the background color – instead of orange, a rich purple was chosen. This issue was printed in sheets (perforated 11x10 1/2) and also in booklets perforated 10. On March 22, 1981, the rate officially changed from 15¢ to 18¢. Other stamps in the set feature the same design style as the Americana Series stamps. These stamps picture an inkwell and quill, violins and the liberty torch, which was once illuminated by 19 lamps, and is now covered in gold foil. Add these six stamps to your collection now and save.