Answer August 2021
Click on the images above to see a full-sized image.
The clue is of a stonework feature on the Eastgate side of the Tap & Spile pub. The centre image shows more of that side of the building.
The pub was originally called the Criterion Inn/Hotel. The right-hand picture, a postcard from 1925, shows the building as the Criterion Hotel.
Anyone know who “JG 1882” was? Use the comments feature below if you do.
Thanks to Stefan for the two modern photos.