The pictures come from the project: 'Britain from Above', which I followed up on and joined (it's free).
Doing a quick search led me to photos which are relevant to the Pace case (and were even taken in the same year as the trial), such as this image of central Gloucester:
|(Gloucester from the air, 1928. Source)|
The Gloucester Shire Hall, where Beatrice's trial was held, is clearly visible in the lower part of the photo in the centre (other images posted on this blog of the Shire Hall are here and here):
This one is also interesting, as it shows Gloucester Prison, where Beatrice was held during the trial (the Shire Hall is now in the upper left-hand corner:
|(Gloucester Prison from the air, 1928. Source.)|
It was a very short distance to the Shire hall (also visible in the photo at the upper left hand), but Beatrice was ferried back and forth by car, usually to the accompaniment of raucous public demonstrations.