In celebration of the centennial of the 1898 Trans-Mississippi stamps the Postal Service issued a Trans-Mississippi souvenir sheet and a 1-dollar Cattle in the Storm souvenir sheet on June 18, 1998, in Anaheim, California.
The Trans-Mississippi souvenir sheet, reproducing stamps issued in monochrome 100 years ago, was reprinted in two colors, as originally intended. Each vignette was chosen to illustrate America's westward expansion in support of the 1898 International Exposition held in Omaha, Nebraska, from June 1 to November 1, 1898. It was issued in a pane of nine stamps.
The Cattle in the Storm souvenir sheet was issued in a pane of nine 1-dollar stamps as a bicolor reissue of the 1898 Trans-Mississippi stamp.
The original 1898 stamp designs were by Raymond Ostrander Smith. Both 1998 souvenir sheets were designed by Richard Sheaff, Scottsdale, Arizona. The Banknote Corporation of America, Inc. engraved the stamps through the intaglio process.
Postal Bulletin (May 21, 1998).