Christine â€” Of course there's no known documentary evidence. If there had been any we'd have known about the butter dish, wouldn't we?
It took me two minutes to find two 2614 pictures. One was in the obvious book, and the other in the obvious website.
And why isolate documentary evidence? I would have thought that with your experience you would appreciate that the great strength of the GMB is that all
evidence is evaluated and utilised, often coming to the conclusion that we don't know. An enormous and most welcome improvement from the situation only a decade or two ago.