|This stamp, issued September 12, 1980, commemorates American Education
a salute to learning.
The First Day City for this stamp (Scott #1833, 15¢) was Franklin, Massachusetts, the home of Horace Mann, the father of American public education.
It is one of my favorite stamps all-time, because of the message.
The image is Glow by Josef Albers. I scanned the stamp myself!