U.S. Senators were undecided about where to build the Canal, whether in Panama or in Nicaragua. Philippe Bunau-Varilla, who lobbied for a Panamanian Canal, sent every senator a Nicaragua postage stamp depicting one of the country’s many volcanoes. It was an effective ploy: Panama had no volcanoes, thus was a safer bet. The U.S. senators agreed Panama was a better option. The stamp can be found today in the National Postal Museum in Washington, D.C.