I was wondering why this photo was reproduced in black and white in my calendar, because it was obviously shot in colour. When you search for it on the internet, the sizes you will find are usually very small, but at least they'll be in colour.
Today I came across the version you see depicted here, which shows the full photo before it was trimmed. As you can see, the Beatles are standing on a roll of red wallpaper for this particular shot. You'll usually see the photo trimmed like this:
There's only one other shot of the full tree I've seen, although it's only available in less-than-mediocre quality:
All photos: Robert Whitaker