The 13-cent Nebraska State Flag issue (Scott 1669) represents one of the last state flags adopted, the flag of Nebraska. In 1963 Nebraska's state banner became the state's official flag.
Representative J. Lloyd McMaster introduced a bill in 1925 designating a state banner. The bill passed and became statute. The law describes the banner as "a reproduction of the Great Seal of the State charged on the center in gold and silver on a field of national blue."
The themes of transportation, industry, settlement, and agriculture are depicted on Nebraska's seal. The eastern section of the circular seal pictures a steamboat ascending the Missouri River. The mechanic arts are represented by a smith with a hammer and anvil. Agriculture is represented by a settler’s cabin, sheaves of wheat, and stalks of growing corn, and in the background a train steams toward the Rocky Mountains. The Rocky Mountains rise in the extreme west.
A ribbon bearing the state motto—"Equality Before the Law"—waves above the images, and around the outside of the seal are the words "Great Seal of the State of Nebraska, March 1, 1867." Nebraska gained statehood as the nation's 37th state in 1867.
Scott 2005 Specialized Catalogue of U.S. Stamps and Covers
SHG Resources (http://www.shgresources.com/ne/symbols/flag/)