"The images where made handheld and they are definetily not made with the lens rotated in the nodal point which makes the images quite difficult to stitch.However I find it is interresting that they even thought of making images for 360 degree panoramas.Actually I am not sure they did but perhaps they were just intended to be stitched together in 2-3 images.The methods of stitching single images together was not at all known in 1969."

I've actually been to one of those clubs, though I'm not supposed to say so. I guess that makes me better than all you who never have been to one! Ha ha!