In 1887, some stamps of the 1870-89 regular issues were produced in new colors, and the 1¢ denomination was redesigned. On August 15, 1887, an official postal circular announced these color changes. In addition to stating that the 2¢ red brown issue would be printed in green and the 3¢ green would be vermilion, the circular also announced changes in the designs and colors of certain stamped envelopes.