Three new stamps in a pane of 18 mark the 150th anniversary of the completion of the transcontinental railroad, a massive engineering feat that reduced travel time across the country from as much as 6 months to about 1 week and made the American West an integral part of the nation. Two different stamps feature the Jupiter and the No. 119 locomotives that powered the trains carrying the officers and guests of two train companies to the “Golden Spike Ceremony,” which was held when the two rail lines were joined at Promontory Summit in Utah. A third stamp portrays the famous golden spike that was a prominent part of the ceremony.

Central Pacific No. 60, named The Jupiter, is a 4-4-0 American steam locomotive. It was built by the Schenectady Locomotive Works of New York in September 1868. The locomotive was originally designed to burn wood, which was the reason for its distinctive funnel, which contained a spark arrestor.

Famed for being the locomotive that finished the "Golden Spike Run" heading east to meet UP #119 at the Golden Spike. The locomotives slowly advanced until the two locomotive's cowcatchers met. However, Jupiter was not the intended locomotive to pull the train to the golden spike, the locomotive originally intended to pull the train hit a log rolled onto the tracks by railroad employees so the Golden Spike consist was added to Jupiter's train. Sadly, the historical significance of this locomotive was not realized until decades after its scrapping in 1909. By then, Jupiter had been unrecognizably altered.