NavList:

Thank you for that link to the collection of Air Almanacs. But you mis-identified the diagrams found in the 1952 edition. You saw the diagrams of the positions of the stars in the sky, altitude and azimuth, which are the equivelent of HO 2102-D. These are not the view through the periscopic sextant that show the pattern of the stars near the desired star within in the limited field of view of the periscopic sextant. Here is a link to one of the 1952 diagrams.

http://babel.hathitrust.org/cgi/pt?id=uiug.30112106761890;view=1up;seq=268

I researched the other volumes and found that the first time the periscopic diagrams were published in 1970, see:

http://babel.hathitrust.org/cgi/pt?id=uiug.30112106762401;view=1up;seq=317

Then in 1973 they added larger diagrams, see:

http://babel.hathitrust.org/cgi/pt?id=uiug.30112106762500;view=1up;seq=317

So the ill fated navigator didn't have the benefit of these diagrams.

gl