A Federal Bureau of Investigation agent demonstrates the restoration of a charred document for trainees.

The video tutorial demonstrates the process of recovering and reading burned paper using specialized techniques. It covers the use of glass plates and a special camera with infrared film to reveal hidden writing. The process is illustrated with an example note, showcasing how the message is deciphered and interpreted.

Describe the appearance of the note after it is photographed.

What message is conveyed in the note that is analyzed?