[servicepub (RIP)]

Let's go one step further. Most of the photos that appear in the Army Engineering Design Board (AEDB) post-war books have disappeared. These photos were taken by the RCAF. At some point long after the war the Cdn Forces Photo Unit did a triage of their photos. As this organisation was an RCAF organisation they destroyed anything that was not air-related.
The result is that, today, I can go to the National Archives and look up the appropriate HC number and find only a gap, between photos of airplanes and air bases, where the originally there was a series of AFV photos.
Fortunately, I have been able to track down many of the original photos of CMPs used by Dr Gregg in his books, and have been making copies for my files. However, at $9.00 a photo this gets expensive!