This is the new Transcontinental Railroad Pane of 18.
Building the transcontinental railroad during the 1860s was a massive engineering feat and one of the great achievements of the 19th century. The U.S. Postal Service® marks the 150th anniversary of the completion of the railroad in 1869 with three distinct stamps in a pane of 18 stamps commemorating the milestone.
The completion was marked by the “Golden Spike Ceremony,” which was held on May 10, 1869, when the rail lines built by the Central Pacific from the west and the Union Pacific from the east were joined at Promontory Summit in Utah. One stamp features the Jupiter locomotive that powered the train carrying the officers and guests of the Central Pacific to the ceremony. Another stamp features the No. 119 locomotive that powered the train carrying the Union Pacific’s officers and guests. The center stamp portrays the famous golden spike that was a prominent part of the ceremony.
Transcontinental Railroad is being issued as a Forever® stamp. This Forever stamp will always be equal in value to the current First-Class Mail® one-ounce price.