A photo of the George Washington medals on display at the Smithsonian Museum of American History in Washington DC, on October 13, 2011.
This is a cropped frame showing Dr. Chase’s collection of Washington’s campaign medals.
This is a promotional image originally shown by OutNow.ch. This shows a Knights Templar or Freemason medallion. I do not believe this medallion is shown in the film, but it is shown in a quick cut in the trailer, held by a hooded man in chainmail.
Here are two HD screencaps of the “The secret lies with Charlotte” note or scrap from the 2004 film “National Treasure.” One shows the note in 1832, the other shows the note in 1974.