I've been following through a series of written instructions with screen grabs. The resolution on the screen grabs is not good and I was attempting to read the information by zooming in - without success, until by chance I found a selection box of options to see the picture in different sizes, including the original, which was then beautifully sharp.

But then I couldn't get out of this screen and had to close Chrome down and start again. I couldn't then of course get back there again, but had at least get the information I was looking for so could progress.

It would seem that the author of the pages must have known of the access to clearer pictures otherwise he wouldn't have included them.

So just what had I done to get to the originals of each picture ?