I have just been to the Walsall AA exhibition and there were some new/different photos in the gallery
I couldn't say for sure but about 20% of the pictures were different from those shown in Oxford
I asked and was told they were sent a large collection and it is then up to the curator to choose which ones to exhibit
So if you went to the Oxford Exhibition and are looking for an excuse to do a return visit - here is the excuse for another go
I also found the Walsall Exhibition to be a little quieter and so could sit in the Galleries central benches and slowly study the pictures from a distance without having my view interupted.
I aslo offered to show a few of the spare pictures left over from the exhibition on my wall at home - and save them the effort of sending them back ... sadly I was politely declined