Over the decades since the war ended, the writing in this document has become smeared and difficult to read because the original ink has diffused into the film-like paper substrate. Thus the characters have become blurred over time. The over-inked parts are by now, over 60 years later, solid black and impossible to read by any usual means. Even infrared photography does not penetrate to show any of the censored text.
However, a capture by reflective ultraviolet photography cleans up the handwriting remarkably well and makes the censored parts of the text re-appear.

Image reference: A05100875646_UV_VIS.jpg
Upper panel: Visible light capture, filter Baader UV/IR Cut. in daylight.
Lower panel: Ultraviolet light, Hoya U-360, open shade.
Captured with Nikon D1 (broad spectrum) and UV-Nikkor 105 mm f/4.5 lens.
[Published 14 Apr 2013]