In conjunction with 1957 National Scout Jamboree held in Valley Forge, PA, this commemorative cover was created by the Jim Bridger Crew Explorer Wood Badge #16 to honor United States Wood Badge Training.  The all-green cachet has the Wood Badge lanyard plus neckerchief and lamp, inscription "Honoring 38 Years Wood Badge Training 1919-1957".  The stamp is US #995, tied to the cover with a 12 July 1957 National Jamboree slogan cancel.