Vintage Post Card of: “Union Station, Washington, D.C.” #M-1343 Pub. By the Washington News Company, Washington, D.C. On the back of the card” The New Union Station was built by the United States Government and the Pennsylvania Railroad and B &O Railroad. The cost was of the land, building and improvements was $18,000,000. The building is made of white granite, 760 feet in length and 343 feet in width. The structure is considered the finest and largest railway station in the world. The card is post-marked Apr 29, 8 am, 1912 and has a green 1 cent George Washington stamp affixed to it.